• The Socio-Ecological process of Water
• Wastewater Management

Vishwanath is a visiting faculty with the School of Development.

He teaches course on water conservation, sustainable groundwater management, water ‑reuse and recycle.

He is a Civil Engineer and Urban — Regional Planner by training . He has 34 years of experience in the water and sanitation sector.He has designed and implemented many water , wastewater , rainwater harvesting and ecological sanitation systems. He has also workedon policy teams for the writing of the State Water Policy, Rainwater harvesting policy and bye-laws for Bengaluru city, Wastewater reuse policyfor the state of Karnataka and as an adviser for the National Wastewater Policy . He has been Secretary-General of the International RainwaterCatchments Systems Association . He wrote a weekly column on water called Waterwise for 12 years in the Hindu . His current interests include the integration of livelihoods aspects with rainwater harvesting , wastewater reuse and groundwater recharge.