National Centre for Earth Science Studies

Publications:

1. Sebestian, A and Lagache, M (1990) Experimental study of the equilibrium between pollucite, albite and hydrothermal fluid in pegmititic system. Mineral Mag. 54, 447-454.
2. Sbestian, A and Lagache, M (1991) Experimental study of lithium rich granitic pegmatites, Part 1. Petalite +Albite + Quartz equilibrium. Ame. Mineral., 76, 205-210.
3. Sebestian, A and Lagache, M (1991) Experimental study of lithium rich granitic pegmatities, Part 1. Spdumene + Albite + Quartz equilibrium. Amer. Mineral., 76, 611-616. 
4. Lagache, M., Dujon, S.C and Sebestian, A (1995) Assemblages of Li-Cs pegmatite minerals in equilibrium with a fluid from their primary crystallization until their hydrothermal alteration: an experimental study. Mineralogy and Petrology (Springer-Verlag), 55, 131-143.

On-going Projects:

1. Graphitization Process in Kollam District,Kerala,India, funded under Plan 282 (Principal Investigator).
2. Assessment & Monotoring of Land Quality for Sustainable Agriculture in Kannur Distict-A GIS based approach coupled with technology implementation,funded under CESS plan 273 (Co-Investigator).

Completed Projects:

1. Investigations on the physico-chemical conditions of crystallisation of Indian beryls, funded by DST ( Scheme for Young Scientist),Govt of India, completed in 1994
2. Geochemical and stable isotopic studies of graphite deposits in Thodupuzha-Muvattupuzha belt ,Kerala, funded by STED, Gov of Kerala, completed in 1999.
3. Graphite mineralization in the Chirakkadavu-Paika belts, Kottayam District, Kerala: Genesis, Texture, Morphology and Geochemistry,funded by STED,Gov of Kerala, completed in 2005.
4. Geological and geochemical aspects, with special emphasis on rock, soil and hydro geochemistry of Krishnapuram, Tamilnadu state, funded under CESS (RDF), completed in 2006.
5. Graphite mineralization in the Karimukal area, Ernakulam District, Kerala with special emphasis on graphitization process and genesis, funded by CESS,plan 213, completed in 2006.

Education:

Professional career:

Areas of interest:

Geo-Chemistry, Mineral Exploration Studies.

Membership of Professional Bodies:

1. The Recognised Research Guide of the University of Kerala from 1992 onwards, Life Member of Indian Geological Congress.

Training Programmes:

1. The Recognised Research Guide of the University of Kerala from 1992 onwards, Life Member of Indian Geological Congress.

Awards:

1. A Project under the Scheme for Young (SYS) by Department of Science and Technology in 1992 (2 Years).

Books & Monographs:

1. Kumaran K.P.N. and Padmalal D. (2021) Holocene Climate Change and Environment, Elsevier, United States of America, 691p.
2. Sheela Nair, L.; Prakash, T.N.; Padmalal, D., and Kumar Seelam, J. (eds.), (2020) Oceanic and Coastal Processes of the Indian Seas. Journal of Coastal Research, (Special Issue No. 89).
3. Tiwari V.M., Padmalal D. and Prakash T.N. (2018) Western Ghats: Evolution and Environmental Issues. Journal of the Geological Society of India, Vol. 92 (Special Issue)
4. Padmalal, D. and Maya, K. (2014). Sand mining: Environmental impacts and selected case studies, Springer, New York, 162p.
5. Padmalal D., Maya, K. and Vishnu Mohan, S. (2013). Late Quaternary climate, sea level changes and coastal evolution – A case study from SW India, Monograph, ISBN 81-901842-1-0, Published by Centre for Earth Science Studies, Thiruvananthapuram, 164p.

In Peer Reviewed Journals:

1. Raj T.R., Gayathri J. A., Vandana M., Sreelash K., Maya K., Padmalal D. and Sajan K. (2023). Rock-water interaction, chemical weathering and solute transport of two rivers draining contrasting climate gradients in Western Ghats, India. Erath Surface Process and Landforms. Doi:10.1002/esp.5598.
2. Sharma R. K., Kumar S., Padmalal D. and Roy A. (2023) Stream flow prediction using machine learning models in selected rivers of southern India. International Journal of River Basin Management. doi:org/10.1080/15715124.2023.2196635.
3. Vandana M, Shiekha E. John, Syam Sunny, Maya K. and Padmalal D. (2022). Environmental Impact Assessment of laterite quarrying from Netravati-Gurpur river basin, South west coast of India. Environment, Development and Sustainability, https://doi.org/10.1007/s10668-022-02741-5.
4. Sumesh R.K., Resmi E.A., Unnikrishnan C.K., Jash D. and Padmalal D. (2022) The extreme precipitation events of August 2018 and 2019 over southern Western Ghats, India: A microphysical analysis using in situ measurements. Atmospheric Research. doi.org/10.1016/j.atmosres.2022106322.
5. Lakshmi N.B., Resmi E. A. and Padmalal D (2022) Assessment of PM2.5 using satellite lidar observations: effect of biomass burning emissions over India. Science of the Total Environment. Doi.org/10.1016/j.scitotenv.2022.155215.
6. Haridas NV., Banerji US., Maya K. and Padmalal.D (2022) Paleoclimatic and paleoceanographic from the Bay of Bengal sediments during the last 30ka. Journal of Asian Earth Sciences, https:// doi.org/10.1016/j-jseas.2022.105169.
7. Shaji.J., Banerji US., Maya K., Joshi K B., Dabhi AJ., Bharti N., Bhushan R. and Padmalal D (2022). Holocene Monsoon and sea level variability from coastal lowlands of Kerala, SW India. Quaternary International. https:// doi.org/10. 1016/j.quaint.2022.03.005.
8. Prasenjit Das, Maya K. and Padmalal D (2021) Hydrogeochemistry of the Indian thermal springs: current status, Earth Science Reviews, https://doi.org/10.1016/earscirev.2021.103890.
9. Gayathri J. A., Raj V. T., Sreelash K., Maya K., Vandana M. and Padmalal D. (2021). Spaptio-temporal variability in groundwater chemistry of a mountainous catchment with complex geologic and climate gradients in south west India. Environmental Earth Sciences, doi.org/10.1007/s12665-021-09862-6.
10. Sreelash K., Arulbalaji P., Maya K. and Padmalal D. (2021). Freshwater sources of Kerala – Hydrometeorological scenarios, Environmental treats and Management srategies. Special Publication of the Journal of the Geological Society of India, No. 10, pp. 20 – 30.
11. Raj V.T., Gayathri J.A., Vandana M., Sreelash K., Sajan K. and Padmalal D. (2021). Major element chemistry of the Bhavani River, Kerala, south west India – Weathering processes and solute transport. Special Publication of the Journal of the Geological Society of India, No. 10, pp. 52 – 59.
12. Mathew M. M., Sreelash K., Mathew M., Arulbalaji P. and Padmalal D. (2021). Spatio-temporal variability of rainfall and its effect on hydrological regime in a tropical monsoon dominated domainof Western Ghats, India. Journal of Hydrology: Regional studies, doi.org/10.1016/j.ejrh.2021.100861.
13. Banerji U. S., Shaji J., Arulbalaji P., Maya K., Vishnumohan S., Dabhi AJ., Shivam A., Bhushan R. and Padmalal D. (2021). Mid – Late Holocene evolutionery history and climate reconstruction of Vellayani lake, south India. Quaternary International, Vol. 599 – 600, pp.72 – 94.
14. Arulbalaji P., Banerji U.S., Maya K. and Padmalal D. (2020). Signatures of late Quaternary land – sea interactions and landform dynamics along southern Kerala coast, SW India, Quaternary International, Vol. 575 – 576, pp. 270 -279.
15. Arulbalaji P., Padmalal D. and Maya K (2020) Impact of urbanization and land surface temperature changes in a coastal town in Kerala, India. Environmental Earth Sciences, doi.org/10.1007/s 12665-020-09120-1.
16. Arulbalaji P., Sreelash K., Maya K. and Padmalal D. (2019). Hydrological assessment of groundwater potential zones of Cauvery river basin, India: a geospatial approach. Environmental Earth Sciences, 78: 667.doi.org /10.1007/s12665-019-8673-6.
17. Arulbalaji P. and Padmalal D. (2020). Sub watershed prioritization based on drainage morphometric analysis: A case study of Cauvery river basin in South India. Journal of the Geological Society of India, Vol. 95(1), pp 25-35.
18. Banerji U.S., Arulbalaji P. and Padmalal D. (2020). Holocene climate variability and Indian Summer Monsoon: An overview. The Holocene, Vol. 30(5), pp 744-773.
19. Vandana M., John S. E., Maya K. and Padmalal D. (2020). Environmental impact of quarrying of building stones and laterite blocks: a comparative study of two river basins in Southern Western Ghats, India. Environmental Earth Sciences, 79(14), pp 1-15.
20. Vandana M., John S. E., Maya K., Sunny S. and Padmalal D. (2020). Environmental impact assessment (EIA) of hard rock quarrying in a tropical river basin- study from the SW India. Environmental monitoring and assessment, 192:580, doi.org/10.1007/s10661-020-08485-x.
21. Arulbalaji P., Padmalal D. and Sreelash K. (2019) “GIS and AHP techniques based delineation of groundwater potential zones: A case study from Southern Western Ghats, India”. Scientific Report, 9:2082 | https://doi.org/10.1038/s41598-019-38567-x pp 1-17.
22. Suresh Babu D. S, Padmalal D and Rao N. P (2018): Submarine ground water discharge in the Indian Context. Current Science, V. 115, No. 12, pp 2197 – 2198.
23. Tiwari V. M, Padmalal D and Prakash T. N (2018) Western Ghats: Evolution and Environmental Issues – An overview. Jour. Geol. Soc. India, Vol.92, pp. 515 – 516.
24. Padmalal D, Sreelash K, Vipin T. Raj, Sajan. K (2018), River discharge, major ion chemistry and sediment transport of the Bharatapuzha river in Southern Western Ghats, India: Implications on catchment erosion. Jour. Geol. Soc. India, Vol.92, pp 568 – 578.
25. Sreelash K, Sharma, R.K., Gayathri, J.A., Upendra, B., Maya, K. and Padmalal D. (2018). Impact of rainfall variability on river hydrology– a case study of southern Western Ghats, India. Jour. Geol. Soc. India, Vol.92, pp 548 – 554.
26. Kumaran KPN, Padmalal D, Ruta B Limaye and Vishnumohan (2018) Signatures of Holocene Hydrological Processes from sedimentary archives in south western India: Case studies from the wetlands of Kerala Coast. Jour: Geol. Soc. Indi, Vol.92, pp 596 – 606.
27. Hema C. Nair, Padmalal D, Joseph A, and Vinod PG (2018) Hydrogeochemistry and water quality assessment of shallow aquifers in the western flanks of southern Western Ghats, SW India. Arabian Jour Geosciences, 11:73, https://doi.org/10.1007/s12517-018-3401-1.
28. Ragi, M.S., Saranya P., Krishnakumar A., Upendra B., Liji T.M., Anoop Krishnan A. , Padmalal D. (2017) Geochemistry of heavy metals and CHNS composition in the sediments of Netravati River Basin: Insight into the pollution aspects, Journal of Indian Association of Sedimentologists, Vol. 34, Nos. 1 & 2. (2017), pp. 121-125.
29. Maya K., Vishnu Mohan S., Ruta B. Limaye, Padmalal D. and Kumaran K. P. N., (2017) Geomorphic response to sea level and climate changes during Late Quaternary in a humid tropical coastline: Terrain evolution model from Southwest India, Plos One 12(5):e0176775. (https://doi.org/10.1371/journal.pone.0176775)
30. Nair H. C., Padmalal D., Joseph A. and Vinod P. G. (2017) Delineation of groundwater potential zones in river basins using geospatial tools - an example from Southern Western Ghats, Kerala, India, Journal of Geovisualization and Spatial Analysis. (https://doi.10.1087/s41651-017-0003-5).
31. Limaye R. B., Padmalal D. and Kumaran K. P. N. (2016) Cyanobacteria and testate amoeba as potential proxies for Holocene hydrological changes and climate variability: Evidence from tropical coastal lowlands of SW India, Quaternary International (doi.org/ 10.1016/j.quaint.2016.09.044).
32. Limaye R. B., Padmalal D. and Kumaran K. P. N. (2016) Late Pleistocene Holocene monsoon variations on climate, landforms and vegetation cover in southwestern India: An overview, Quaternary International (In press).
33. Vishnu Mohan S., Limaye R. B., Padmalal D., Ahmad S. M. and Kumaran K.P.N (2016) Holocene climatic vicissitudes and sea level changes in the south western coast of India: appraisal of stable isotopes and palynology, Quaternary International (doi.org/10.1016/j.quaint.2016.07.018).
34. Kumaran K. P. N., Padmalal D., Limaye R. B., Vishnu Mohan S., Jennerjahn T. and Gamre P. G. (2016) Tropical peat and peatland development in the floodplains of the Greater Pamba Basin, South-western India during the Holocene. Plos One, Vol. 11(5).
35. Divya V., Padmalal D. and Mohanan C. N. (2016) Soils of Southern Western Ghats (India) – a potential archive of late Holocene Climate records, International Journal of Scientific and Research Publications, Vol.6(3), pp. 302-306.
36. John S. E., Maya K. and Padmalal D. (2016) Environmental Impact Assessment of Soil Quarrying from the Hills of Central Kerala, Southwest Coast of India, International Journal of Scientific and Research Publications Vol. 6(8), pp. 514-520.
37. Vishnu Mohan S., John S. E., Rajimol T. R., Maya K., Sajan K. and Padmalal D. (2016). Human interventions and consequent environmental degradation of a protected freshwater lake in Kerala, SW India, Geosciences Journal, Vol. 20(3), pp 391-402.
38. Divya V., Padmalal D. Vimal K. C. and Mohanan C. N. (2016) Paleoclimatic indicators in the soil blanket of southern Western Ghats (Sahyadri), SW India, Journal of Indian Association of Sedimentologists, Vol. 33(1&2), pp. 91-97.
39. Nair H. C., Padmalal D. and Joseph A. (2015) Hydrochemical assessment of tropical springs - a case study from SW India. Environmental Monitoring and Assessment, Vol. 187(2), 48.
40. Padmalal D and Staff Reporter (2015) Kerala’s dwindling freshwater resources, Geography and you, Vol. 15(91) pp. 32-37.
41. Vishnu Mohan S., Padmalal D., Maya K. and Baburaj B. (2014). Sea level oscillations, climate change and landform evolution in the western coastal lowlands of Trivandrum block in peninsular India. Indian Journal of Geo-Marine Sciences, Vol.43, No.7, pp. 1145-1151.
42. Padmalal D., Maya K., Vishnu Mohan S. and Baburaj B. (2014). Holocene land-sea interactions and landform changes in the coastal lands of Vembanad lagoon, Kerala, SW India. Indian Journal of Geo-Marine Sciences, Vol.43, No.7, pp. 1152-1156.
43. Badarudeen A., Sajan K., Reji Srinivas., Maya K. and Padmalal D. (2014) Environmental significance of heavy metals in leaves and stems of Kerala mangroves. Indian Journal of Geo-Marine Sciences, Vol. 43 (6), pp. 1021-1029.
44. Kumaran K.P.N., Padmalal D., Nair K.M., Ruta B. Limaye, Guleria J.S., Srivastava R. and Shukla A. (2014). Vegetation response and landscape dynamics of Indian summer monsoon variations during Holocene: An eco-geomorphological appraisal of tropical evergreen forest subfossil logs. Plos One, Vol.9, No.4, pp. 1-24.
45. Padmalal D., Kumaran K.P.N., Nair K.M., Ruta B. Limaye, Vishnu Mohan S. Baijulal B. and Anooja S. (2014). Consequences of sea level and climate changes on the morphodynamics of a tropical coastal lagoon during Holocene: An evolutionary model. Quaternary International, Vol.333, pp. 156-172.
46. Padmalal D., Kumaran K.P.N., Ruta B. Limaye, Baburaj B., Vishnu Mohan S. and Maya K. (2014). Effect of Holocene climate and sea level changes on landform evolution and human habitation: Central Kerala, India. Quaternary International, Vol.325, pp. 162-178.
47. Ruta B. Limaye, Kumaran K.P.N. and Padmalal D. (2014). Mangrove habitat dynamics in response to Holocene sea level and climate changes along south west coast of India. Quaternary International, Vol.325, pp. 116-125.
48. Maya K., Padmalal D., Baburaj B. and Narendra Babu K. (2014). Water quality assessment of a small tropical river basin, Southwest coast of India. Journal of Applied Geochemistry, Vol.16, No.2, pp. 306-320.
49. Vishnu Mohan S. and Padmalal D. (2014), Holocene evolution of freshwater lakes of southern Kerala, SW India. Gondwana Geological Magazine, Vol.15, pp. 67-78.
50. Padmalal D., Kumaran K.P.N., Nair K.M., Ruta B. Limaye, Vishnu Mohan S. Baijulal B. and Anooja S. (2014). Consequences of sea level and climate changes on the morphodynamics of a tropical coastal lagoon during Holocene: An evolutionary model. Quaternary International, Vol.333, pp. 156-172.
51. Vishnu Mohan S. and Padmalal D. (2013) Geologic evolution, anthropogenic impacts and management action plans of the Sasthamkotta kayal – A Ramsar site, Kerala, India, Journal of Indian Association of Sedimentologists, Vol. 32, No. 1&2, pp. 73-83.
52. Anooja S., Padmalal D., Maya K., Vishnu Mohan S. and Baburaj B. (2013). Heavy mineral contents and provenance of the Late Quaternary sediments of Southern Kerala, Southwest India. Indian Journal of Geo-Marine Sciences, Vol.42, No.6, pp. 749 – 759.
53. Baijulal B., Sobha V., Jissy Jyothy S., Padmalal D. and Immanuel J. (2013). Depositional behaviour of C-org, N, P and K in the surface sediments of two shallow water bodies in a tropical coast, India. Environment Monitoring and Assessment, Vol.185, pp. 7181- 7193.
54. Santhosh V., Padmalal D., Baijulal B. and Maya K. (2012). Brick and tile clay mining from the paddy lands of Central Kerala (southwest coast of India) and emerging environmental issues. Environmental Earth Science, Vol.68, pp.2111-2121.
55. Padmalal D., Maya K., Narendra Babu K., Baiju R.S. and Baburaj B. (2012). Hydrochemical characterization and water quality assessment of the coastal springs of southern Kerala. India. Journal of Applied Geochemistry, Vol.14, No.4, pp. 466-481.
56. Baburaj B., Padmalal D., Remya S.I., Maya K. and Lekshmi I. (2012). DIN, DIP, DIC and SO4 fluxes from the Neyyar river (Kerala) into the receiving coastal waters. Bonfring International Journal of Industrial Engineering and Management Science, Vol.2, Special Issue 1, pp. 1 – 7.
57. Maya K., Santhosh V., Padmalal D. and Aneesh Kumar S.R. (2012). Impact of mining and quarrying in Muvattupuzha River Basin, Kerala – An Overview on its environmental effects. Bonfring International Journal of Industrial Engineering and Management Science, Vol.2, Special Issue 1, pp. 36 – 40.
58. Kumaran K.P.N., Ruta B. Limaye and Padmalal D. (2012). India’s fragile coast with special reference to Late Quaternary environmental dynamics. Proc. Indian National Science Academy, Vol.78, No.3, pp. 343 – 352.
59. Padmalal D., Remya S.I., Jissy Jyothi S., Baijulal B., Babu K.N. and Baiju R.S. (2011). Water quality and dissolved inorganic fluxes of N, P, SO4, and K of a small catchment river in the Southwestern Coast of India. Environment Monitoring and Assessment. Vol.184, No.3, pp. 1541-1567.
60. Padmalal D., Kumaran K.P.N., Nair K.M., Baijulal B., Ruta B. Limaye and Vishnu Mohan S. (2011). Evolution of the coastal wetland systems of SW India during Holocene: Evidence from marine and terrestrial archives of Kollam coast, Kerala. Quaternary International, Vol.23, pp. 123-139.
61. Sreebha S. and Padmalal D. (2011). Environmental Impact Assessment of sand mining from the small catchment river in the southwestern coast of India. Environmental Management, Vol.47, pp. 130-140.
62. Ruta B. Limaye, Kumaran K.P.N., Nair K.M. and Padmalal D. (2010). Cyanobacteria as potential biomarker of hydrological changes in the Late Quaternary sediments of South Kerala Sedimentary Basin, India. Quaternary International, Vol.213, pp. 79-90.
63. Nair K.M., Padmalal D., Kumaran K.P.N., Sreeja R., Ruta B. Limaye and Srinivas R. (2010). Late Quaternary evolution of Ashtamudi – Sasthamkotta Lake systems of Kerala, Southwest India. Journal of Asian Earth Sciences. Vol.37, pp. 361-372.
64. Anu Gopinath, Nair S.M., Kumar N.C., Jayalakshmi K.V. and Padmalal D. (2010). A base line study of trace metals in a coral sedimentary environment, Lakshadweep Archepelago. Environmental Earth Sciences, Vol.59, pp. 1245- 1266.
65. Maya K., Padmalal D., Narendra Babu K. and Sreeja R. (2009). Lime shell mining from the Vembanad Lake Basin (Kerala State), SW India: Problems and prospects. The Icfai University Journal of Earth Sciences, Vol.3, pp. 41-54.
66. Padmalal D., Maya K., Narendra Babu K. and Sreeja R. (2008). Occurrence and mining of lime shells from the coastal lands of Kerala State, SW India. Journal of Economic Geology and Geo-resource Management, Vol.6, pp. 48-58.
67. Anu Gopinath, Chandramohanakumar N., Padmalal D. and Muraleedharan Nair S. (2008). Distributional characteristics in fractionation of phosphorus in a coral reef sedimentary environment. Chemical Speciation and Bioavailability, Vol.20, No.3, pp. 149-159.
68. Padmalal D., Maya K., Sreebha S. and Sreeja R. (2008). Environmental effects of river sand mining: a case from the river catchments of Vembanad lake, Southwest India. Environmental Geology, Vol.54, pp. 879-889.
69. Kumaran K.P.N., Ruta B. Limaye, Nair K.M. and Padmalal D. (2008). Palaeoecological and palaeoclimate potential of subsurface palynological data from the Late Quaternary sediments of South Kerala Sedimentary Basin, Southwest India. Current Science, Vol.95, pp. 515-526.
70. Sureshbabu D.S., Padmalal D. and Arun P.R. (2007). Watershed analysis of two forest catchments from Western Ghats, South India and its significance for mitigation of reservoir siltation. Journal of Geological Society of India, Vol.69, pp. 1077-1087.
71. Maya K., Babu K.N., Padmalal D. and Seralathan P. (2007). Hydrochemistry and dissolved nutrient flux of two small catchment rivers, Southwestern India. Chemistry and Ecology, Vol.23, pp. 1-15.
72. Babu K.N., Padmalal D., Maya K., Sreeja R. and Arun P.R. (2007). Quality of surface and groundwater around tile and brick clay mines in the Chalakudy river basin, Southwestern India. Journal of Geological Society of India, Vol.69, pp. 279-284.
73. Ruta B. Limaye, Kumaran K.P.N., Nair K.M. and Padmalal D. (2007). Non-pollen palynomorphs as potential environmental indicators in the Late Quaternary sediments of the west coast of India. Current Science, Vol.92, No.10, pp. 1370-1382.
74. Krishnakumar A., Sobha V., Padmalal D., Baiju R.S. and Baijulal B. (2006). Hydrogeochemical characterization and socio-environmental implications of Vellayani freshwater lake, Southern Kerala, India. Eco-chronicle, Vol.1, pp. 35-46.
75. Arun P.R., Sreeja R., Sreebha S., Maya K. and Padmalal D. (2006). River sand mining and its impact on physical and biological environments of Kerala rivers, Southwest coast of India, Eco-chronicle, Vol.1, pp. 1-6.
76. Nair K.M., Padmalal D., and Kumaran K.P.N. (2006). Quaternary Geology of South Kerala Sedimentary Basin – An outline. Journal of Geological Society of India, Vol.67, pp. 165-179.
77. Krishnakumar A., Sobha V. and Padmalal D. (2005). Status of nutrients and heavy metals in the recently deposited sediments of Vellayani freshwater lake, Kerala, Southwest coast of India. Ecology Environment and Conservation., Vol.11, No.2, pp. 235-240.
78. Anu Gopinath, Kumar N.C., Jayalakshmi K.V., Padmalal D. and Nair S.M. (2005). A predictive regression model for the geochemical variability of iron and manganese in a coral reef ecosystem. Environmental Forensics, Vol.6, pp. 301-310.
79. Jayalakshmi K., Kumaran K.P.N., Nair K.M. and Padmalal D. (2005). Late Quaternary environmental changes in the South Kerala Sedimentary Basin, Southwestern India. Geophytology, Vol.35, pp. 25-31.
80. Kumaran K.P.N., Nair K.M., Mahesh Shindikar, Ruta B. Limaye and Padmalal D. (2005). Stratigraphical and palynological appraisal of the Late Quaternary mangrove deposits of the west coast of India. Quaternary Research, Vol.64, pp. 418-431.
81. Krishnakumar A., Padmalal D. and Sobha V. (2005). Is environmental degradation the root cause for communicable diseases in Kerala? A case study. Journal of Environmental Sciences and Engineering, Vol.47, pp. 91-102.
82. Anu Gopinath, Kumar N.C., Padmalal D. and Nair S.M. (2004). Speciation of nitrogen in the coral reef sedimentary environment of Lakshadweep Archipelago, Indian Ocean. Chemistry and Ecology, Vol.20, pp. 267-278.
83. Narendra Babu K., Ouseph P.P. and Padmalal D. (2000). Interstitial water – sediment geochemistry of N, P and Fe and its response to overlying waters of tropical estuaries: a case from the south west coast of India. Environmental Geology, Vol.39, No.6, pp. 633-640
84. Sreejith S., Padmalal D. and Mani R. (1998). Granulometric studies of the sediments of Sasthamkotta and Chelur lakes, Kerala: Implications of hydrodynamic responses on lacustrine sediments. Journal of Indian Association of Sedimentology, Vol.17, No.2, pp. 251-262.
85. Badarudeen A., Padmalal D. and Sajan K. (1998). Hydrodynamic response on mangrove sediments of Kannur region, Southwest coast of India. Indian Journal of Marine Sciences, Vol.27, pp. 262-265.
86. Badarudeen A., Padmalal D. and Sajan K. (1998). Organic carbon and total phosphorus in the sediments of some selected mangrove ecosystems of Kerala, southwest coast of India. Journal of Geological Society of India, Vol.51, pp. 679-684
87. Padmalal D., Sreejith S. and Mani R. (1997). Origin of Sasthamkotta and Chelur lakes, Kollam district, Kerala – Its implications in the evolution. Indian Cartographer, Vol.18 pp. 97-100.
88. Padmalal D., Ramachandran K.K., and Seralathan P. (1997). Significance of heavy mineral suite in riverine and estuarine sediments in the Southwest coast of India: A case study. Indian Journal of Marine Sciences, Vol.27, pp. 185-189.
89. Padmalal D., Maya K. and Seralathan P. (1997). Geochemistry of Cu, Co, Ni, Zn, Cd and Cr insurficial sediments of a tropical estuary, southwest coast of India – a granulometric approach. Environmental Geology, Vol.31 (1/2), pp. 85-93.
90. Padmalal D. (1996). Sedimentary structures and texture of the Warkalli sandstone at Cherunniyoor, Kerala Journal of Geological Society of India, Vol.48, pp. 403-407.
91. Badarudeen A., Damodaran K.T., Sajan K. and Padmalal D. (1996). Texture and Geochemistry of the sediments of a tropical mangrove ecosystem, southwest coast of India. Environmental Geology, Vol.27, pp. 164-169.
92. Padmalal D. and Seralathan P. (1995). Geochemistry of Fe and Mn in the surficial sediments of a tropical river and estuary, India – A granulometric approach. Environmental Geology. Vol.25, pp. 270-276.
93. Padmalal D., Santhosh S. and Babu D.S.S. (1995). Trace metal contents of iron sulfide minerals from the Tertiary carbonaceous clays of Kerala. Journal of Geological Society of India, Vol.46 pp. 263-268.
94. Padmalal D. and Seralathan P. (1995). Organic carbon and phosphorus loading in recently deposited riverine and estuarine sediments – A granulometric approach. Indian Journal of Earth Sciences, Vol.22, pp. 12-28.
95. Seralathan P. and Padmalal D. (1994). Textural studies of the surficial sediments of Muvattupuzha river and Central Vembanad estuary. Journal of Geological Society of India, Vol.43, pp. 179-190.
96. Seralathan P., Meenashikutty N.R., Asharafe A. and Padmalal D. (1993). Sediment and organic carbon distributions in Cochin harbour area. Indian Journal of Marine Sciences, Vol.22, pp. 252-255.
97. Padmalal D. and Seralathan P. (1993). Heavy metal contents in suspended particulates and bed sediments of a tropical perennial river and estuary, Central Kerala, India. Journal of Geological Society of India, Vol.42, pp. 349-355.
98. Pdmalal D. (1992). Evolution of Kerala: Myth and Science. Pragathy, Vol.55, pp. 29-32.
99. Padmalal D. and Seralathan P. (1991). Record of fossil echinoid, Lovenia forbesi, from the subsurface Quilon beds (Lower Miocene), Kerala. Journal of Zoological Society Kerala, Vol.1, pp. 82-85.
100. Seralathan P. and Padmalal D. (1991). Geochemistry of the Tertiary formation at Pozhikkara cliff section, Kerala – Its environmental significance. Journal of Geological Society of India, Vol.39, pp. 277-281.
101. Padmalal D. and Seralathan P. (1991). Interstital water-sediment geochemistry of P and Fe in the sediments of Vembanad lake, southwest coast of India. Indian Journal of Marine Sciences, Vol.20, pp. 263-266.

In books:

1. Vishnu Mohan S., Aneesh M.S., Maya K., Kumaran K.P.N. and Padmalal D. (2021). Holocene evolution of coastal wetlands – A case study from southern Kerala, India. In Holocene Climate Change and Environment (Eds. Kumaran K.P.N and Padmalal D), Elsevier, United States of America, pp. 513 - 545.
2. Maya K., Padmalal D., Vandana M., Vishnu Mohan S., Vivek V. R., Limaye R. B. and Kumaran K. P. N (2021). Holocene changes in fluvial geomorphology, depositional environments and evolution of coastal wetlands. In Holocene Climate Change and Environment (Eds. Kumaran K.P.N and Padmalal D), Elsevier, United States of America, pp. 483 – 512.
3. Banerji U. S. and Padmalal D. (2021). Bond events and monsoon variability during Holocene – Evidence from marine and continental archives. In Holocene Climate Change and Environment (Eds. Kumaran K.P.N and Padmalal D), Elsevier, United States of America, pp. 293 – 338.
4. Padmalal D., Limaye R. B., Kumaran K.P.N. (2021). Holocene climate and sea level Changes and their impact on ecology, vegetation and landforms in South Kerala Sedimentary Basin, India. In Holocene Climate Change and Environment (Eds. Kumaran K.P.N and Padmalal D), Elsevier, United States of America, pp. 163 – 195.
5. Padmalal D., Nair K. M., Kumaran K.P.N., Sajan K., Vishnu Mohan S., Maya K., Santhosh V. and Anooja S. (2013). Evidences of climate and sea level changes in a Holocene Bay Head Delta, Kerala, Southwest coast of India. In. Climate change and island and coastal vulnerability, (Eds. J. Sundaresan, S. sreekesh, A. L. Ramananthan, L. Sonnenschein, R. Boojh), Springer, The Netherlands, pp. 191-208.
6. Vishnu Mohan S., Padmalal D. and Santhosh V. (2013). Palaeoclimatic records and organic carbon loading in the Holocene sediments of Polachira Wetlands, Southern Kerala, SW India. In. Climate change and environment, (Eds. J. Sundaresan, S. Sreekesh, A. L. Ramananthan, L. Sonnenschein, R. Boojh), Scientific Publishers, New Delhi, pp. 211-224.
7. Kumaran K.P.N., Ruta B. Limaye and Padmalal D. (2013). Mangrove responses to climate change along the southwestern coast of India during Holocene: Evidence from palynology and geochronology. In. Climate change and island and coastal vulnerability, (Eds. J. Sundaresan, S. Sreekesh, A. L. Ramananthan, L. Sonnenschein, R. Boojh), Springer, The Netherlands, pp. 217-238.
8. Santhosh V., Padmalal D., Sobha V. and Baijulal V. (2013). Impact of urbanization on the surface and groundwater resources of the coastal lands of central Kerala, southwest India. In. Climate change and environment, (Eds. J. Sundaresan, S. Sreekesh, A. L. Ramananthan, L. Sonnenschein, R. Boojh), Scientific Publishers, New Delhi, pp. 16-27.
9. Santhosh V., Padmalal D., Sobha V. and Baiju R.S. (2013) Mining of tile and brick clays from the coastal lands of Chalakudy and Periyar rivers, Kerala, SW India. In. Earth Resources and Environment (Ed. R. Venkatachalapathy), pp. 327-334.
10. Vishnu Mohan S., Padmalal D., Sreebha S. and Maya K. (2013). Environmental effects of sand mining from Kallada river, Kollam district, Kerala state. In. Earth Resources and Environment (Ed. R. Venkatachalapathy), pp. 353-362.
11. Padmalal D., Maya K., Sreebha S. and Sreeja R. (2009). Mining Kerala’s mineral wealth – Problems and prospects. Sasthrapadham – a blueprint for sustainable development of the state of Kerala. Directorate of Public Relations, Cochin University of Science and Technology, Kochi, pp. 348 – 350.
12. Padmalal D., Maya K. and Nair K.M. (2008). Environmental problems of Kerala (Malayalam). In: ‘Grameenam’ (Ed. S. Anilkumar), Published by Centre for Science Communications, Directorate of Public relations and Publications, CUSAT, pp. 39-53.
13. Sobha V., Krishnakumar A. and Padmalal D. (2007). Degradation and regeneration of environment with special reference to resource extraction activities in Trivandrum District, Kerala. In: Environment Management (Ed. Sasi Bushana Rao P), Regal Publishers, New Delhi, pp. 89-104.
14. Padmalal D., Maya K., Naredra Babu K. and Mini S.R. (2005). Tile and brick clay mining and related environmental problems in the Chalakudy basin, Central Kerala – Case study. In: Water resources of Kerala: Issues and case studies (Eds. K.N. Nair and S. Chattopadhyay). Kerala research programme on local level development, CDS, Thiruvananthapuram. pp. 80-82.
15. Krishnakumar A., Sobha V. and Padmalal D. (2005). Urban solid waste generation and management with special reference to environmental degradation. In:Solid waste management: Challenges and prospects (Ed. K. Sreekumar). pp. 1-20.
16. Padmalal D., Arun P.R., Maya K. and Ramachandran K.K. (2004). Mining of some natural resources of Greater Kochi Region – Problems and Perspectives. In: Silver Jubilee Compendium, (Eds. Rabindrakumar G R and Subhash N). Centre for Earth Science Studies, Thiruvananthapuram, pp. 347-357.
17. Nair K.M. and Padmalal D. (2004). Quaternary geology and geomorphic evolution of South Kerala Sedimentary Basin, West coast of India. In: Silver Jubilee Compendium, (Eds. Ravindra Kumar G R and Subhash N). Centre for Earth Science Studies, Thiruvananthapuram, pp. 69-81.
18. Padmalal D., Maya K., Naredra Babu K. and Mini S.R. (2004). Tile and brick clay mining and related environmental problems in the Chalakudy basin, Central Kerala. Discussion paper No. 96, KRPLLD, Centre for Development Studies, Thiruvananthapuram.
19. Naredra Babu K., Padmalal D., Sreeja R. and Sreebha S. (2003). Water quality variation of Bharathapuzha river, Southwest coast of India: Problems and solutions. In: Environmental pollution, Proc. Int. Con. on Water and Environment, Bhopal (India), (Eds. Singh V P and Yadava R N). Allied Publishers Pvt. Ltd., New Delhi. pp. 29-43.
20. Padmalal D., Maya K., Mini S.R. and Arun P.R. (2003). Impact of river sand and gravel mining: A case of Greater Kochi Region (Kerala), Southwest coast of India. In: Water Resources System Operation, Proc. Int. Con. on Water and Environment, Bhopal (India), (Eds. Singh V P and Yadava R N), Allied Publishers Pvt. Ltd., New Delhi. pp. 48-59.
21. Padmalal D. and Reghunath R. (2002). Urban Solid wastes of Kerala. Edited by M.Jayakumar et al. Published by STEC, Government of Kerala, pp. 93-97.
22. Krishnakumar A., Sobha V. and Padmalal D. (2002). Hydrochemistry of Vellayani lake, Kerala with special reference to its drinking water potential. In: Conservation and management of aquatic systems’. (Ed. Unni KS). Daya publication Company, Delhi. pp. 44-61.
23. Padmalal D. (2001). Keralathile dhathunikshepangalum Paristhithi Prasnangalaum (Malayalam). In Paristhithi: Sasthreeya veekshanam, State Institute of Languages, Kerala. Pp. 200-224.
24. Ramachandran K.K. and Padmalal D. (1997). Environmental Impact Assessment (EIA) of Mineral based industries of Kerala. In “The Natural Resources of Kerala” (Eds. Thampi K.B, Nair N.M and Nair C.S), World Wide Fund for Nature-India, Thiruvananthapuram, pp. 31-49.
25. Padmalal D., Anandaraj N., Seralathan P., Karthikeyan S., Vijayalakshmi B. and Iyer C. S.P. (1996). Present status of texture, carbon and heavy metals in the Kayamkulam estuary, Southwest coast of India. In ‘Advances in Environmental Sciences’ (Ed. Iyer, C.S.P), Educational Publishers, New Delhi, pp. 199-207

In Proceedings of Conference / Seminar:

1. Gayathri J. A., Raj V. T., Sreelash K., Maya K. and Padmalal D. (2023) Whether the contrasting isotopic signals in groundwater sources of the Bhavani River basin are signatures of mountain block recharge? A study from the Attappadi CZO. Proc. 35th Kerala Science Congress, 10-14 Feb., 2023 (The first author received the best paper award)
2. Sreelash K. and Padmalal D. (2022) Vegetation as a sensor for estimating sub-surface soil-water information: Evidence from experimental and modelling studies in Critical Zone Observatory. Presented in 9th International Groundwater Conference (IGWC – 2022), Roorkee, 2-4th Nov., 2022 (The first author received the best paper award)
3. Raj VT., Sreelash K. and Padmalal D (2022) Chemical denudation of mountainous catchments in southern Western Ghats – a case study using hydrochemical tools and modelling. (The first author received the Best Poster award) 34the Kerala Science Congress, 10-12 Feb. 2022, Trivandrum, Kerala
4. Upasana S. Bamerji, Ravi Bhushan and Padmalal D. (2019) Hydroclimate variability during the last two millennia and its impacts of forcing factors: A study from the Western India. Proceeding of the Sixth Biennial conference of Ocean Society of India, Kochi during 12th – 14th December 2019. pp.261-262. (First author received Best paper award).
5. Arulbalaji P., Maya K. and Padmalal D. (2019). Analysis of coastal landform changes using Remote Sensing and GIS: A case study of Kollam coast, SW India: Proceeding of the Sixth Biennial conference of Ocean Society of India, Kochi during 12th – 14th December 2019. pp 269 -270.
6. Padmalal D. (2019) Holocene evolution of Kuttanadu Kole (Ramsan) wetlands in SW India: Proceeding of the 20th INQUA conference held during the 25- 31st July 2019, Dublin, Ireland.
7. Padmalal, D., Maya, K. and Vishnu Mohan, S. (2016) Holocene climate change in SW India – a multi proxy study using coastal sediments as an archive, 35th International Geological Congress, Cape Town, South Africa.
8. Padmalal D., Maya K. and John S. E. (2015) Environmental effects of soil quarrying in Kerala: An overview, Proceedings of the National Seminar on Soil Pollution and Paradigms for Sustainable Soil Management, Department of Environmental Sciences, University of Kerala, Kariavattom Campus, Thiruvananthapuram, pp. 22-27.
9. Shiekha E John, Maya K. and Padmalal D. (2014). Environmental effects of river sand mining: a case study from SW India. Proceedings of National Seminar on Mineral Resources of Kerala, pp 115-125.
10. Aswathy K. A., Shiekha E John, Maya K. and Padmalal D. (2014). Impacts of brick and tile clay mining from the wetlands of Periyar river basin, Kerala, India. Proceedings of the National Seminar on Mineral Resources of Kerala, pp 137-144.
11. Vishnu Mohan S., Padmalal D., Maya K. and Baburaj B. (2014). Sea level oscillations, climate change and landform evolution in the western coastal lowlands of Trivandrum block in peninsular India. Proceedings of the fifth Indian National Conference on Harbour and Ocean Engineering (INCHOE 2014), pp 209-214
12. Padmalal D., Maya K., Vishnu Mohan S. and Baburaj B. (2014). Holocene land-sea interactions and landform changes in the coastal lands of Vembanad lagoon, Kerala, SW India. Proceedings of the fifth Indian National Conference on Harbour and Ocean Engineering (INCHOE 2014), pp 492-496.
13. Ramdev P.R., Padmalal D. and Maya K. (2014). Morphometric signatures and terrain evolution- A case study of Periyar and Muvattupuzha river basins, Kerala, SW India. Proceedings 26th Kerala Science Congress held at Wayanad, pp. 1788-1796. (The first author received Best Poster Award).
14. Aswathy K. A., Rajimol T.R., Maya K., Narendra Babu K. and Padmalal D. (2014). Water quality of a few lentic water bodies of Karamana river basin with special reference to internal loading of PO4-P and Fe. Proceedings 26th Kerala Science Congress held at Wayanad, pp. 2588-2596.
15. Shiekha E. John, Vishnu V., Manoj J., Maya K. and Padmalal D. (2014). Major and trace element chemistry of borehole cores from Paravur estuarine basin, Kerala, SW India. Proceedings 26th Kerala Science Congress held at Wayanad, pp. 2604-2610.
16. Maya K., Shiekha E. John, and Padmalal D. (2013). Evolution of mineral resources of the coastal lands of Vembanad lake with special reference to mining and mining-related environmental problems. 23rd Kerala Swadeshi Science Congress, MG University, Kottayam, pp. 446-450.
17. Rajimol T. R., Ramdev P. R., Baburaj B., Maya K. and Padmalal D. (2013). Coastal plain rivers of Thiruvananthapuram district, Kerala – River characteristics, human interventions and management strategies. Awarded Best Paper, 23rd Kerala Swadeshi Science Congress, MG University, Kottayam, pp. 336-340. (The first author received Best Paper Award).
18. Shiekha E John, Maya K. and Padmalal D. (2013). Impact of mining induced channel incision on water resource potential – Evidences from Kerala rivers. 23rd Kerala Swadeshi Science Congress, MG University, Kottayam, pp. 370-375.
19. Ramdev P. R., Shiekha E. John, Maya K. and Padmalal D. (2013). Environmental effects of hard rock quarrying on land and water resources of small catchments – A case study. 23rd Kerala Swadeshi Science Congress, MG University, Kottayam, pp. 327-331.
20. Shiekha E. John, Maya K. and Padmalal D. (2013) Impacts of hard rock quarrying: An environmental case study from Greater Kochi Region, Kerala, India. 25th Kerala Science Congress, Technopark, Thiruvananthapuram, pp. 67-69.
21. Padmalal D., Kumaran K.P.N., Ruta B. Limaye and Baburaj B. (2012). Sedimentological, palynological and stable isotope evidences of palaeoclimate and sea level records in the Holocene sedimentary archives of Central Kerala, SW India. Japanese Journal of Palynology, Special issue-58, IPC/IOPC 2012, pp. 179.
22. Kumaran K.P.N., Ruta B. Limaye and Padmalal D. (2012). Holocene vegetation dynamics in the southwestern India: Palynological and Palaeoecological appraisal of terrestrial and marine archives. Japanese Journal of Palynology, Special issue-58, IPC/IOPC 2012, pp. 117.
23. Vishnu Mohan S. and Padmalal D. (2012). Evidence of changing climate in the past 10000 years from the sedimentary archives of southern Kerala. 24th Kerala Science Congress, Rubber Research Institute of India, Kottayam, pp. 329-331. (The first author received Young Scientists best paper award).
24. Anooja S. and Padmalal D. (2012). Provenance of Late Quaternary sediments in the coastal lands of Kollam district, Kerala. 24th Kerala Science Congress, Rubber Research Institute of India, Kottayam, pp. 357-360.
25. Padmalal D. (2011). Construction grade sand -sources and strategies. National Seminar on Mining of River Sand and its Impacts on the Environment, CWRDM. pp. 55-64
26. Maya K, Padmalal D., Santhosh V. and Aneesh S R. (2011). Instream and floodplain sand mining from Muvattupuzha river basin, consequences and strategies. National Seminar on Mining of River Sand and its Impacts on the Environment, CWRDM. pp.111-124
27. Vishnu Mohan S., Sreebha S., Padmala D., MayaK. and Linikrishna K. L. (2011). Sand mining in Pamba river. National Seminar on Mining of River Sand and its Impacts on the Environment, CWRDM. pp.141-151.
28. Anooja1 S., Baijulal B., Maya K., Sreebha S. and Padmalal D. (2011). Impact of sand mining on river bed changes and bed material characteristics- a case analysis. National Seminar on Mining of River Sand and its Impacts on the Environment, CWRDM. pp.173-181
29. Resmi R., Baburaj B., Santhosh V., Sreebha S. and Padmalal D. (2011). EIA of river sand mining using Rapid Impact Assessment Matrix (RIAM) – A case study. National Seminar on Mining of River Sand and its Impacts on the Environment, CWRDM. pp. 183-189.
30. Baijulal B., Jissy Jyothi S., Padmalal D. and Maya K. (2011). Environmental effects of alluvial sand mining on the biological environment of Kerala rivers. National Seminar on Mining of River Sand and its Impacts on the Environment, CWRDM. pp. 195-205
31. Anooja S., Remy S. I., Vishnu Mohan S., Jissy Jyothi S. and Padmalal D. (2010). Sediment characteristics and carbon accumulation in the coastal wetlands of southern Kerala. Proceedings of the 22nd Kerala Science Congress held at KFRI, Peechi, and pp.391- 392
32. Vishnu Mohan S., Linikrishna K. L., Maya K. and Padmalal D. (2010). Impact of Instream sand mining: an example from southern Kerala. Proceedings of the 22nd Kerala Science Congress held at KFRI, Peechi, pp.631- 632.
33. Maya K., Padmalal D., Babu K.N. and Sreeja R. (2008). Lime shell mining from Vembanad lake, Kerala – Problems and prospects. Proc. 20th Kerala Science Congress, pp. 362-365
34. Sheeba S. and Padmalal D. (2007). Impact of environmental degradation on clam resources in the Paravur lake (Kerala), southwest coast of India. Centre for Environment and Development, Proceeding of Kerala Environment Congress. Pp.288-294.
35. Nair K.M., Padmalal D. and Kumaran K.P.N. (2007). Response of post-middle Miocene tectonics on stratigraphy and geomorphology of offshore-onshore regions of SW coast of India. Proceedings of the International Workshop (IGCP-514) on Fluvial and Marine processes of Cenozoic and formation of placers (Ed. D.S. Sureshbabu). Held at CESS, Thiruvananthapuram from 1-10 November 2007. pp. 17-19.
36. Sreebha S. and Padmalal D. (2006). Sand mining and its environmental impacts on the river catchments of Vembanad lake, Southwest India. Proceedings of the 18th Kerala Science Congress, pp. 365-367. (The first author received Young Scientists best paper award).
37. Padmalal D., Maya K., Sreebha S. and Arun P.R. (2005). Impacts of river sand mining: An overview of Kerala rivers. Paper presented in the Workshop-cum-Training on River Management held at CESS, Thiruvananthapuram on 21st July 2005.
38. Arun P R., Mini S R., Rajesh Reghunath and Padmalal D. (2003). Mining of construction grade fine aggregates from river basins: a case analysis. 15th Kerala Science Congress, Thiruvananthapuram, 29-31st Jan.2003, pp.586-590.
39. Sreeja R., Maya K., Rajesh Reghunath and Padmalal D. (2003). Instream sand mining from Periyar river and emerging environmental issues. 15th Kerala Science Congress, Thiruvananthapuram, 29-31st Jan.2003, pp.804-805.
40. Padmalal D. and Maya K. (2000). Sand mining from Kerala Rivers. Mruthika – A WWF India, Kerala State Office Publication; August-September issue, pp.4-7.
41. Maya K., Padmalal D. and Ramachandran K.K. (2000). Quantification, characterization and management of solid wastes of Central Kerala. 12th Kerala Science Congress, Peermadu, 27-29th Jan.2000, pp.583-587.
42. Babu D.S.S., Nandakumar V. and Padmalal D. (2000). Analysis of Land, Soil and Water in the Neyyar Wild Life Sanctuary South Kerala proc. 12th Kerala Science Congress, Peermadu. pp. 57-62
43. Mani R., Lal T., Sanjay S., Sreejtih S. and Padmalal D. (1997). Environmental Interpretation of the Tertiary deposits at Pallippuram and sasthavattom areas, Thiruvananthapuram District, Kerala. Proc. 9th Kerala Science Congress, pp.104-105.
44. Maya K., Badarudeen A. and Padmalal D. (1996). Palaeo-environmental interpretation of the Tertiary deposit at Varkala, Kerala. Proc. 8th Kerala Sci. Cong., pp.87-88.
45. Padmalal D., Shaju B. R. and Baji S. (1995). Sedimentological studies of the Tertiary deposit at Pozhikkara, Kerala – Its environmental significance. Proc. 7th Kerala Sci. Cong., pp. 275-277.
46. Shaju B. R., Padmalal D. and Baji S. (1995). A note on load casts from the Warkalli beds at Chilakkoor, Thiruvananthapuram district, Kerala. Proc. 7th Kerala Sci. Cong., pp. 278-279.
47. Mohanan C. N. and Padmalal D. (1995). The aquatic weed problem in Akkulam Veli lake and Amelioration, INDIS seminar on waste Utilization/Disposal and People’s action, pp.3-7.
48. Padmalal D. and Seralathan P. (1994). Surface textural studies of quartz and zircon in sediments of Muvattupuzha river and Central Vembanad estuary. Proc. 6th Kerala Sci. Cong., pp.2-85. Lakshmanan S. and Padmalal D. (1990). Sedimentary structures from the Warkalli beds at Puliyur, Alleppey district, Kerala Proc. 77th Indian Sci. Cong., pp. 57-58.
49. Lakshmanan S. and Padmalal D. (1990). Sedimentary structures from the Warkalli beds at Puliyur, Alleppey district, Kerala Proc. 77th Indian Sci. Cong., pp. 57-58.

Web paper:

1. Padmalal D. (2010). Alluvial sand mining: the Kerala experience. Commissioned papers – Western Ghats. http://westernghatsindia.org/commssioned-papers.

Institutional Paper:

1. Tiwari M., Padmalal D. and Babu S. D. S. (2016) National Centre for Earth Science Studies, Proc. Indian National Science Academy, Vol. 82(3) pp. 1039-1048.

News and Notes:

1. Tiwari V.M., Varma A.K. and Padmalal D. (2016) Workshop on Western Ghats: Evolution and Environmental Issues, Jour.Geol.Soc.India, Vol. 88 pp. 811-812.

Projects Completed as PI:

1. Sand auditing of rivers (Manimala, Periyar and Muvattupuzha) in the Idukki District. Funded by the District Administration, Idukki.
2. Palaeoclimate and sea level records in the Late Quaternary sediments of coastal wetlands of Pallikkal and Achankovil river basins, Kerala – Its implications on coastal evolution. Funded by the Kerala State Council for Science, Technology and Environment, GoK.
3. Quaternary geology and geomorphic evolution of the coastal lands of Kollam district, Southwest India. Internally funded project.
4. Environmental appraisal and sand auditing of Periyar river, Ernakulam district, Kerala. Funded by District Administration, Ernakulam, 2011.
5. River sand auditing: A case of Manimala river (RD-7). Funded by Revenue Department (Pathanamthitta and Kottayam Districts), Government of Kerala, 2010.
6. River sand mining and management (PLAN – 236). Internally funded project, 2006.
7. Sand mining studies of Kerala Rivers. Funded by various Local Bodies of Kerala, 2000 – 2007.
8. Tile and brick clay mining and related environmental problems of the Chalakudy river basin, Central Kerala. Funded by Kerala Research Programme on Local Level Development (KRPLLD), 2004.
9. Report on biomass resource assessment study of Kunnathunad and Parur talukas, Ernakulam District, Kerala. Funded by Agency for Non-conventional Energy and Rural Technology (ANERT), 2003.
10. 10. Municipal solid waste generation and management of Changanassery, Kottayam and Kannur Municipalities and Kochi Corporation, Kerala. Funded by Agency for Non-conventional Energy and Rural Technology (ANERT), 2003.
11. Sand mining from Manimala river. Funded by Anicadu, Kottangal, Kallooppara, Puramattom and Kuttoor Grama Panchayats, Pathanamthitta district, 1999.
12. Sand mining from the Pamba river: consequences and strategies. Funded by the District Administration, Pathanamthitta, 1999.
13. EIA of soil quarrying from the plot with Resurvey No.99/6, Thiruvallam Village, Thiruvananthapuram District. Funded by District Administration, Thiruvananthapuram, 1998.
14. Sand availability of the Manimala River in the vicinity of Mallappally Grama Panchayat, Pathanamthitta District: A technical study. Funded by Mallappally Grama Panchayat, 1998.
15. Sand budget of Periyar River: Special reference to River sand mining. Internally funded project, 1998.
16. A preliminary investigation on the sand budget of the Pamba river between Cherukolpuzha and Kizhavarakadavu, Pathanamthitta District. Internally funded project, 1995.