The India Environment Portal is initiated and managed by the Centre for Science and Environment (CSE) promoted by the National Knowledge Commission (NKC), Government of India. The India Environment Portal is seeks to be a one-stop shop of all that you want to know about environment and development issues. The India Environment Portal employs a unique and built thesaurus of environmental and geographic terms. Each topic is classified and sub-classified.

http://indiaenvironmentportal.org.in/