WikiWealth

"India had about 5.6 billion barrels (890,000,000 m3) of proven oil reserves as of January 2007, which is the second-largest amount in the Asia-Pacific region behind China. Most of India's crude oil reserves are located in the western coast (Mumbai High) and in the northeastern parts of the country, although considerable undeveloped reserves are also located in the offshore Bay of Bengal and in the state of Rajasthan.

As per the Oil and Gas Journal, India had 38 trillion cubic feet (Tcf) of confirmed natural gas reserves as of January 2007. A huge mass of India’s natural gas production comes from the western offshore regions, particularly the Mumbai High complex. The onshore fields in Assam, Andhra Pradesh, and Gujarat states are also major producers of natural gas. As per EIA data, India produced 996 billion cubic feet of natural gas in 2004.

Other major Resources include coal (fourth-largest reserves in the world), iron ore, manganese, mica, bauxite, titanium ore, chromite, natural gas, diamonds, petroleum, limestone, arable land."

Sources:

"Energy Information Administration (EIA)". Statistical agency of the U.S. Department of Energy. http://www.eia.doe.gov/emeu/cabs/India/Oil.html.
https://www.cia.gov/library/publications/the-world-factbook/
http://en.wikipedia.org/wiki/Natural_resources_in_India