Offices held
- Development Adviser, WAPCOS (India) Limited, New Delhi and Chennai, 1990-98.
- UNDP Consultant, Bhutan, 1990.
- WHO Consultant, Indonesia, 1989-90.
- WHO Consultant, Bhutan, 1989 & 1986.
- President, Indian Water Works Association, 1988-89.
- Adviser, Public Health and Environmental Engineering, Goverment of India, New Delhi, 1981-1989.
- National Director, Lowcost Sanitation Program, Government of India (project in collaboration with World Bank and UNDP)
- WHO Consultant, South Sulawesi Province, Indonesia, 1984.
- Chief Technical Adviser to Government of maldives and WHO consultant, 1976-78.