Santhosh Ragavan K V

Senior Specialist – TNUSSP | santhoshkv at iihs dot ac dot in

2008    MSc, Environmental Health, Cyprus International Institute, Harvard School of Public Health, Nicosia
1998    BE, Environmental Engineering, S.J. College of Engineering, University of Mysore


Countries: India
States: Tamil Nadu
Cities: Chennai, Thiruchirapalli, Kovai
Languages: English, Hindi, Kannada, Tamil, Telugu

Santhosh Raghavan has a Masters in Environmental Health from Cyprus International Institute. His current interests are in urban sanitation and methods to scale up sanitation.


Santhosh is part of the Practice Programme at IIHS. His primary responsibility is to support the Tamil Nadu Urban Sanitation and Support (TNUSSP) programme on planning, engineering and implementation. Santhosh works on understanding the current sanitation situation through baseline studies and other tools and methods and provides the State or City options for improvement. He provides technical assistance to the two model urban locations for preparing sanitation plans; and implementation support along the sanitation value chain. One of his primary responsibilities is to support implementation of faecal sludge treatment plants.


In previous roles he has worked on energy and environment services including environmental assessment of coal-based power generation; municipal and industrial waste treatment systems – design, construction and O & M; agricultural energy and water demand management projects covering asset/ infrastructure mapping, energy and water efficiency project implementation; indoor and ambient air quality and its impact on human health.

Practice Projects at IIHS

2015 onwards Tamil Nadu Urban Sanitation Support Programme (TNUSSP)

Previous Teaching Experience

2010 – 2012 Padmashree School of Public Health, Bangalore. (Affiliated to Rajiv Gandhi University of Health Sciences, Karnataka). Taught ‘Environmental health’ subject for three consecutive terms for the MPH programme.

Journal Article

  • Rajarathnam, U., Athalye, V., Ragavan, S., Maithel, S., Lalchandani, D., Kumar, S., … & Bond, T. (2014). Assessment of Air Pollutant Emissions from Brick Kilns. Atmospheric Environment, 98, 549-553.
  • Weyant, C., Athalye, V., Ragavan, S., Rajarathnam, U., Lalchandani, D., Maithel, S., … & Bond, T. C. (2014). Emissions from South Asian Brick Production. Environmental Science & Technology, 48(11), 6477-6483. doi: 10.1021/es500186g
  • Maithel, S., Lalchandani, D., Malhotra, G., Bhanware, P., Uma, R., Ragavan, S., & Athalye, V. (2012). Brick Kilns Performance Assessment: A Roadmap for Cleaner Brick Production in India. New Delhi: Shakti Sustainable Energy Foundation and Climate Works Foundation.
  • Sabapathy, A., Ragavan, S., & Saksena, S. (2012). An Assessment of Ttwo-wheeler CO and PM10 Exposures along Arterial Main Roads in Bangalore City, India. Open Atmospheric Science Journal, 6(1), 71-77.
  • Sabapathy, A., Ragavan, S., Vijendra, M., & Nataraja, A. G. (2010). Energy Efficiency Benchmarks and the Performance of LEED Rated Buildings for Information Technology Facilities in Bangalore, India. Energy and Buildings, 42(11), 2206-2212.


Other Writing

  • Balakrishnan, K., Raman, R., Ramasamy, N., Malladi, T., Ragavan, K. V. S., & Sebastin, S. (2018). Suitability of on-site sanitation systems across Tamil Nadu. Chennai: TNUSSP.
  • Ramamoorthy, R., Jain, S., Raman, R., Ragavan, K. V. S., Eswaramoorthy, S., Ramasamy, N., …. Anrose, J. (2018). Sanitation situation assessment: Tiruchirappalli. Chennai: TNUSSP.
  • Sharma, R., Eswaramoorthy, S., Ragavan, K. V. S., Jain, S., & Vimala, P. P. (2018). Assessment of fecal sludge decanting stations in Tiruchirappalli. Chennai: TNUSSP.
  • Nagaraja, P., Timblo, T., Ragavan, K. V. S., Moopanar, S. S., Devaraj, R., Ramasamy, N., & Sebastian, S. (2017). Tamil Nadu state baseline study: Technical assessment of sanitation chain. Chennai: TNUSSP.
  • Robbins, D. M., Singh, S. G., Ragavan, K. V. S., Vimala, P. P., Eswaramoorthy, S. (2017). Sewage and fecal sludge treatment in Tiruchirappalli: Current status, proposed plans and recommendations for improvement. Chennai: TNUSSP.
  • Ragavan, K. V. S., & Raman, R. (2016). Municipal building rules: Suggested changes. Chennai: TNUSSP.
  • Sarangan, G., Raman, R., Shivaram, K. N. V., Ragavan, K. V. S., Ramasamy, N., Joshua, P., … Joseph, S. (2016). Baseline studies for urban sanitation: Tiruchirappalli, Periyanaicken-Palayam, Narasimhanaicken-Palayam. Chennai: TNUSSP.
  • Weyant, C., Athalye, V., Ragavan, S., Rajarathnam, U., Kr, B., Lalchandani, D., … & Phuong, N. (2012, December). Aerosol Radiative Forcing Estimates from South Asian Clay Brick Production Based on Direct Emission Measurements. In AGU Fall Meeting Abstracts (Vol. 1, p. 0038).
  • Rajarathnam, U., Sehgal, M., Nairy, S., Patnayak, R. C., Chhabra, S. K., & Ragavan, S. (2011). Time-series study on Air Pollution and Mortality in Delhi. Research Report (Health Effects Institute), (157), 47-74.