• Principal Investigator, UGC Project on “Assessment of a tropical river ecosystem through entomological biomonitoring and classical water quality indices - an integrative approach”, 2014-16
• Principal Investigator, Kerala State Council for Science, Technology and Environment Project on “Biomonitoring potentials of aquatic insects for water quality analysis at two segments of Kallada River- a comparative study”, 2013-14
• Principal Investigator, Kerala State Council for Science, Technology and Environment Project on “Preliminary screening of some selected indigenous medicinal plants for antimicrobial activity on two pathogenic bacteria”, 2009-10
• Principal Investigator, UGC Project on “Antimicrobial effect of some selected indigenous medicinal plants on Vibrio cholera”, 2007-09
• Co-investigator, KSCSTE Major project on Assessment of Physical, Chemical and Biological Quality of Achencovil River, 2009-12

• Research Guide  in Zoology (University of Kerala)
• Convener, Admission (2024)
• Member, Board of Studies (Microbiology), University of Kerala (2023 - )
• Member, Purchase Committee (2023 - )
• Member, DST-FIST Committee (2016 - )
• Co-ordinator, Health Club, NSS College, Pandalam (2017-2019)
• Co-ordinator, IQAC, N.S.S. College, Pandalam (2014-2019)
• Member, PG Board of Studies (Zoology), M.G.University  (2014-2017)
• Convener, College Level Monitoring Committee (CLMC- CBCSS) (2012-2014)
• Editorial Board Member, Science Chronicle (Multidisciplinary Journal)
• Additional Chief Superintendent of Examinations, University of Kerala (Self financing affiliated College) (2011)

• UGC aided National Workshop on ‘Innovations in Teaching, Learning and Evaluation’, 26 March 2012 held at NSS College, Pandalam, Kerala 
• ‘Training Programme in Information Technology’, held at NSS College, Pandalam Kerala in association with ICT Academy of Kerala, from 13 – 15, February 2017
• Coordinated webinar on “Intellectual Property Awareness Programme” organised by Intellectual Property Office, Ministry of Commerce and Industry in association with NSS College, Pandalam Kerala, 06 December 2022.

• Padmasree Prof. N.Balakrishnan Nair Merit Award for M.Sc. I Rank, 2000

Research papers in National and international Journals

• S. Nandakumar, M.G. Sanalkumar, R.S. Balamurali, R.Reshmi, C.V.Anupama, O. Ranjitha and Lekshmi.S.Kumar. 2009. Antibacterial activity of selected Indian Medicinal plants and antibiotics on Staphylococcus aureus. J.Ecobiol. 24(2):147-152
• M.G. Sanalkumar, S. Nandakumar and B. Pramod.2009. Soil enrichment activity of Earthworm species Eisenia fetida., J. Ecology and Fisheries. 2: 9-14
• M.G. Sanalkumar, R.S. Balamurali and S. Nandakumar.2009. Studies on seasonal variation in the population density and distribution patterns of soil isopod- Phyloscia javanensis. J. Eco chronicle. 4(1):33-38
• M.G. Sanalkumar, S. Nandakumar, R.S. Balamurali, and G.Reshmi.2010. Effect of sub lethal concentrations of an insecticide and a herbicide on the longevity and moulting of a soil collembolan- Lobella coralina. J. Eco. Tox. & Env. Moni. 20(6):593-600
• M.G. Sanalkumar, R.S. Balamurali, S. Nandakumar and P.S. Anu .2010. Effect of sub lethal concentrations of an insecticide and a herbicide on the fecundity and incubation period of a soil micro-arthropod Phyloscia javenensis. J. Eco. Tox.& Env.Moni. 20(3):293-300
• M.G. Sanalkumar, S. Nandakumar and P.M. Remya. 2012. Seasonal variations in the population density and diversity of soil fauna in two different habitats of Central Travancore Area of South Kerala –India. Int. J. of Scientific and Research Pub.2 (1):1-5
• Athira K.V. and S. Nandakumar. 2012. A preliminary screening of selected medicinal plants for antimicrobial effect on coliform bacteria isolated from raw milk.Science Chronicle, 1(1):21-28.
• M.G. Sanalkumar, S. Nandakumar, S. Vaisakh, R.S. Balamurali and S. Sankar.2012.A Notational Composition of bird species of Nilgiri Slope forest – A paradise of avifauna in Southern Western Ghats. Int. J. Sci. Res. Pub.2(11):A.1-2
• Reshma S. and S. Nandakumar.2012.A study on the activity of selected medicinal plants on the sensitivity of human skin microflora. Science Chronicle, 1(1):59-64
• V. Jayalekshmy, S. Nandakumar and M.G. Sanalkumar.2013. Comparative studies of antibacterial activities of selected medicinal plants and commonly used antibiotics on Pseudomonas aeruginosa. J. Ecotox. and Environmental monitoring23(1):51-57
• S. Nandakumar and  M.G.Sanalkumar. 2013. Rapid bioassessment protocol for riverine systems of South India using insect indicators – A new methodology approach. Science chronicle 2(1&2):297-305
• Vaisakh S., M. G. Sanalkumar and S. Nandakumar, 2014. Purity assessment of Pallickal river water using microbial indicator organisms, J. Ecobiology, 33(1): 57-60
• V. Jayalekshmy, M. G. Sanalkumar and S. Nandakumar, 2014. Endemic fish species composition and conservation status in Pallickal river, Kerala, J. Ecobiology, 33(2): 133 – 137
• Sanalkumar M.G., Mayalekshmi P., Nandakumar S., Padmakumaran Nair K.G., Jayalekshmy V. and Vaisakh S. Comparison of proximate composition of five cypriniformes fish species of river Achencovil. Science chronicle. 3(1&2):18-26
• Vaisakh S., Sanalkumar M.G., Nandakumar S. and Jayalekshmy V. 2014. Avifaunal diversity of Bharanikkavu Gramapanchayath, Alappuzha, Kerala, Science chronicle. 3(1&2):27-32
• Firozia Naseema Jalal, M.G. Sanalkumar, Nandakumar S. and R.S. Balamurali.2014. Microbiological and physico – chemical characteristics of Achencovil River water in relation to pilgrimage season. Science chronicle. 3(1&2):33- 40
• V. Jayalekshmy, S. Nandakumar, M.G. Sanalkumar and Vaisakh S.2014. Antibacterial susceptibility study on Pseudomonas aeruginosa in the clinical samples from Pandalam, Kerala. Science chronicle. 3(1&2):55-61
• Balamurali R.S., Sanalkumar M.G., Nandakumar S. and Aswathy R. 2016.Toxiological studies on a soil microarthropod and indication of the potential threat in soil humus formation. Int. J. Sci. Research.5(1):587-591
• S. Nandakumar, M.G. Sanalkumar and R.S. Balamurali.2016.Ecosystem threat assessment using relative scoring method analysis- A new methodology approach to River Achencovil. Int. J. Sci. Research.5(1): 628-631
• R.S. Balamurali, M.G. Sanalkumar and S. Nandakumar. 2016. Seasonal soil micro-arthropod association in different habitats with special reference to a terrestrial isopod, Phyloscia javanensis (Rich).Int. J. Sci. Res. Pub.6(2):6-16
• Ushas P.U., Nandakumar S., Sanalkumar M.G., Indupriya R.S., Vaisakh S. and Jayalekshmy V. 2016. Biomonitoring potentials of aquatic insects for water quality monitoring at two segments of Kallada River, Kerala. Science chronicle. 5(1&2):51-55
• Balamurali R.S. and Nandakumar S. 2016. An evaluation of aquatic macroinvertebrate diversity of River Achankovil, Kerala. J.Adv. in Bio.Sci. 3(1&2):1-6
• M. G. Sanal Kumar, S. Nandakumar, B. Bini, M. S. Mahitha.2017. Concentration study of antimicrobial activity with selected oral cleansers on oral microflora. Research J. Pharm. and Tech. 9(12):2241-2245.
• S. Nandakumar, M. G. Sanal Kumar, B. Bini, Geethu G. Krishnan.2017. Antimicrobial activity of selected medicinal plants against oral microflora. Research J. Pharm. and Tech. 9(12):2271-2275.
• M. G. Sanal Kumar, S. Nandakumar, B. Bini and Arya Raj R. S. 2017. Comparative study of the disinfection capacity of different floor cleaning solutions on ventilated room floor.International Journal of Pure and Applied Researches 4(1):21-26
• M. G. Sanal Kumar, S. Nandakumar, B. Bini and Durga Mohan.2018. In vitro assessment of different concentration of allopathic and ayurvedic medicinal preparation on Microbial Inhabitants of eye. Journal for Advanced research in applied sciences 5(1):290-295
• M. G. Sanal Kumar, S. Nandakumar, Saluja Krishnan, B. Bini, Jayalekshmy V. and  Rinu Mary Varghese 2018. A Comparative study on the antimicrobial potential of selected medicinal plants against three pathogenic bacteria. Eco chronicle 12(4):115-119
• M. G. Sanal Kumar, S. Nandakumar and B. Bini. 2018. A Comparative Study of Antimicrobial Activity with Selected Hand Washes on the Human Skin Flora. Trends in Biosciences 11(16):2636-2638
• M. G. Sanal Kumar, V.Jayalekshmy and S.Nandakumar. 2018. Checklist and status of Piscean fauna in Pallickal River – A wetland river of Western Ghats Ecoregion, International Journal for Science and Advance Research in Technology 4(4):2504-2509.
• S. Nandakumar, M. G. Sanal Kumar, R.S.Balamurali, Saluja Krishnan and Swetha Chandra. 2018. A comparative study of the gut microflora in juvenile and adult stages of an estuarine fish, Mugil cephalus. International Journal for Science and Advance Research in Technology4(4):2472-2475
• Prathibha Ravi, K.G. Padmakumaran Nair and S.Nandakumar. 2019. Method Validation and Dissipation Kinetics of Thiamethoxam and Emamectin Benzoate in Brinjal (Solanum melongena L.). Int. J. Res. An. Rev. 6(2): 268-278
• Jyothylakshmi K., Kurian Mathew Abraham, S. Nandakumar and M.G.Sanalkumar. 2020. Screening of indicator microbes, A strategy for pollution assessment of Killiyar, A rivulet of Karamana River, Thiruvananthapuram, Kerala. J. Adv. Sci. Research 11(3) Suppl 7: 203-206
• Jyothylakshmi. K , S. Nandakumar and M.G. Sanal Kumar. 2021.  Bacterial pollution indicators associated in the tissues of an estuarine fish Mugil cephalus from Ashtamudi lake, a RAMSAR site (Kerala, India). Sustainability, Agri, Food and Environmental Research.9(4): 516-525
• Jyothylakshmi. K, Kurian Mathew Abraham, S. Nandakumar and M.G. Sanal Kumar. 2021.  Aquatic insects, a tool for monitoring the health of riverine ecosystem, a case study of Killiyar, Thiruvananthapuram, Kerala, India. Sustainability, Agri, Food and Environmental Research. 9(4): 581-598
• M. G. Sanal Kumar, Akhil Kumar S and S. Nandakumar. 2021. Diversity and Abundance of Soil Microarthropods in Relation to Pedological Characteristics - A Case Study at Aranmula Panchayath, Kerala. Res. J. Agr. Sci., Volume 12(6): 2199-2204
• K. Jyothylakshmi, Kurian Mathew Abraham, S. Nandakumar, E. Eyarin Jehamalar. 2022. New record of riffle bug Rhagovelia (Neorhagovelia) nilgiriensis Thirumalai, 1994 (Hemiptera: Heteroptera: Veliidae) from Kerala, India. Entomon. Volume 47 (4): 449-452
• Saluja Krishnan, S. Nandakumar and K.G.Padmakumaran Nair. 2023. Diversity of Aquatic Insects in Relation to Physico Chemical Water Quality in Kallada River, Kollam, India. Ind. J. Nat. Sci. 14(77): 54332-54341 
• K. Jyothylakshmi and S. Nandakumar. 2023. Bionomics of Four Species of Aquatic Bugs (Hemiptera: Heteroptera: Nepomorpha) of Sasthamkotta Lake, A Ramsar Site of Kerala, India. Ind. J. Nat. Sci. 14(80): 60795-60800
• K.G. Padmakumaran Nair, Jyothi S. Pillai, S. Nandakumar and Saumya S. Pillai. 2023. Modulation Of Lipid Metabolism And Hepatic Oxidative Stress By Clerodendrum infortunatum In Experimental Diabetes. IOSR J. Pharm. and Bio. Sci., 18(3): 14-21
• Jyothi S Pillai, Padmakumaran Nair K.G, Nandakumar S, Robin J Thomson, Saumya S Pillai. 2023. Clerodendrum infortunatum Attenuates Pancreatic Oxidative Stress and Dysregulated Carbohydrate Metabolism in Streptozotocin-induced Experimental Diabetes. Int. J. Pharm. Sci. Drug Res., 15(3):229-236.
• K. Jyothylakshmi and S. Nandakumar. 2023. New faunistic records of two species of pygmy backswimmers (Hemiptera, Heteroptera, Pleidae) from Kerala, India. Entomon. 48(4): 611-616
• Gracious M. and Nandakumar S. 2024. Optimization of Bacillus subtilis PW12 biomass production using RSM: a preliminary study towards single-cell protein production for aquaculture. J. App, Biol. Biotech.  web

As chapters in edited books

• Reeja jose, M.G. Sanalkumar and S. Nandakumar. 2012. Diversity and distribution of aquatic insects in the river Achencovil during monsoon season in relation to water quality. A. Biju Kumar(ed.). Biodiversity Documentation and Taxonomy. Narendra Publishing House, New Delhi. 241-249.
• S. Nandakumar and M.G. Sanalkumar. 2012. Purity assessment of a riparian ecosystem- A rapid pursuit using entomological indicators. A. Biju Kumar(ed.). Biodiversity Documentation and Taxonomy. Narendra Publishing House, New Delhi. 175-181.
• M.G. Sanalkumar, V. Jayalekshmy, S. Nandakumar and R.S.Balamurali, S.2013. Alpha diversity of Konni reserve forest- prospectus of long term ecorestoration. Proc. National Seminar, Water resource management: present uses, status, cooperation and conservation, CSS Books. India. ISBN:978-81-7821-545-7:197-202
• Jyothylakshmi K. and S. Nandakumar. 2021. Conservation of Freshwater Biodiversity- Needs and Challenges. Chitra V.S. and Balamurali R.S. (eds.). Rejuvenating Environmental Studies- A Multidisciplinary Approach. Upanayan Publications, Delhi. 30-37.

Books co-authored

• Immunology and Microbiology, 2017. Manjusha Publications, Calicut
• Ecology, Ethology, Evolution and Zoogeography, 2017. Manjusha Publications, Calicut
• Ethology, Evolution and Zoogeography, 2022. Academica, Thiruvananthapuram

• S. Nandakumar and M.G. Sanalkumar. 2010. Rapid bio-assessment protocol for river health assessment based on entomological indicator species – a case study of River Achencovil. 22nd Kerala Science Congress,  28-31 January 2010, Peechi, Thrissur.
• Reeja Jose, M.G.Sanalkumar and S.Nandakumar. 2011. Diversity and seasonal fluctuations of copepods in Achencovil river. National Seminar on Emerging Trends in Biodiversity Conservation & Sustainable Management, 25-26 August 2011, Chengannur, Kerala, 
• Firozia Naseema Jalal, M.G. Sanalkumar and S. Nandakumar. 2011. Microbiological and physico-chemical water quality assessment of Pamba River of Kerala in relation to pilgrimage season. International Conference on Climate change, Forest Resource and Environment, 9-11 December 2011 Thiruvananthapuram, Kerala.
• Reeja Jose, M.G. Sanalkumar and S. Nandakumar. 2011. Diversity and Abundance of Crustacean Zooplanktons in Achencovil River in relation to Hydrological parameters. International Conference on Climate change, Forest Resource and Environment, 9-11 December 2011, Thiruvananthapuram, Kerala,
• S. Nandakumar and M.G. Sanalkumar.2016. Diversity profile of aquatic insects in relation to physico-chemical parameters of river Achencovil, Kerala. Int. Conf. on Envt. Sustainability for Food Security, 22-24 September 2016, Sree Ayyappa College for Women, Chunkankadai, Nagercoil, Tamil Nadu.
• K. Jyothylakshmi, S. Nandakumar and  M.G. Sanal kumar. 2019. A study on pollution indicator bacteria associated with three selected fishes in Kureepuzha backwater, a part of Ashtamudi Lake, Kollam, Kerala. National seminar on Ecology and conservation, 14-16 January 2019, Department of Zoology, University of Kerala, Kariavattom, Thiruvananthapuram,
• Jyothylakshmi. K., Kurian Mathew Abraham, S. Nandakumar and M.G. Sanal kumar. 2019. Premonsoon health status assessment of Killiyar, a tributary of Karamana River using Odonate population as biomonitoring tool, International Seminar on Blue growth initiative: Sustainable fishery development Strategies and advanced technologies for Aquaculture, 7-9 August, 2019, Fathima Matha National College, Kollam.
• Jyothylakshmi. K., Kurian Mathew Abraham, S. Nandakumar and M.G. Sanal kumar. 2019. Do urban river systems be ecosustainable? A premonsoon microbial evaluation of health status of Killiyar, a tributary of Karamana River, Thiruvananthapuram, National Seminar on Promotion of Eco-Friendly & Sustainable Innovations, 25 July 2019, College of Agriculture, Vellayani, Thiruvananthapuram
• Jyothylakshmi. K., Kurian Mathew Abraham, S. Nandakumar and M.G. Sanal kumar. 2019. Screening of microbial indicators of Killiyar, a tributary of Karamana River with special reference to monsoon season. National Seminar on Advances in earth and environmental changes, 20 September 2019, School of Earth System Sciences, University of Kerala, Kariavattom, Thiruvananthapuram
• Jyothylakshmi. K., Kurian Mathew Abraham, S. Nandakumar and M.G. Sanal kumar. 2019. Biomonitoring of Killiyar, a tributary of Karamana River using entomological indicators. National seminar on Biodiversity conservation, 21- 23 November, 2019, Department of Zoology, University of Kerala, Kariavattom, Thiruvananthapuram.
• Saluja Krishnan and S. Nandakumar. 2022. Bioassessment of a freshwater ecosystem using aquatic insects- a study on river Kallada, Kollam, Kerala. International Conference on Recent Advancements in Life Sciences, 23 – 25 May, 2022, CEPCI Research Institute, Kollam
• Jyothylakshmi K., and S. Nandakumar. 2022. Systematics and bionomics of predatory water bug Diplonychus rusticus (Fabricius, 1781) – A case study from Sasthamkotta Lake, Kerala, India. International Conference on Current Trends in Life Science for a Sustainable Future, 4 – 6 August, 2022, Mar Ivanios College, Thiruvananthapuram
• Saluja Krishnan and S. Nandakumar. 2022. Bacterial contamination in river water: A review on Kallada, Southern Kerala. International Conference on Current Trends in Life Science for a Sustainable Future, 4 – 6 August, 2022, Mar Ivanios College, Thiruvananthapuram
• Merin Gracious and S. Nandakumar. 2022. Medium optimization for enhanced biomass production of Bacillus Sp. International Conference on Current Trends in Life Science for a Sustainable Future, 4 – 6 August, 2022, Mar Ivanios College, Thiruvananthapuram

Courses & Workshops attended

• International Training Workshop on “Aquatic Insects of India useful for biomonitoring of water pollution” (Organized by Department of Entomology, Clemson University, USA & Department of Environmental Sciences, University of Kerala) 19-27 June, 2007
• Orientation course for college teachers in Information Technology conducted by UGC Academic Staff College, University of Kerala from  21.02.2008 to 19.03.2008.
• State level Workshop on ‘Curriculum restructuring’, Organised by Mahathma Gandhi University, held at St.Albert’s College, Ernakulam, 17-18 August 2011.
• National Workshop on ‘Innovations in Teaching, Learning and Evaluation’, organised by IQAC, N.S.S.College, Pandalam, Kerala 26 March 2012.
• Refresher Course in Life Sciences conducted by UGC-ASC, Mizoram Central University, 08.02.2012 to 28.02.2012
• National Training on ‘Techniques in Marine Ornamental Fish Keeping and Breeding’, organized by Central Marine Fisheries Research Institute (ICAR), Thiruvananthapuram, 26-30, March 2013.
• Training programme in ‘Informational Technology’, conducted by ICT Academy of Kerala, 13-15, February 2017.
• Special Winter School Programme conducted by UGC-HRDC, University of Kerala, 16.02.2017 to 08.03.2017
• Refresher Course in Life Sciences conducted by UGC-HRDC, Calicut University, 24/10/2018 to 13/11/2018
• National Workshop on “Diversity, Inclusion and Equity: Reforms in Pedagogy as envisioned in NEP 2020” organised by UGC-HRDC, University of Kerala, Thiruvananthapuram in collaboration with N.S.S.College, Pandalam, Kerala, 20-21 January 2023.