Indian Embassy, Washington D.C. An excellent resource for travel to India including electronic versions of applications. Deputy Chief of Mission's office has particularly been open and willing to make avail their services for Indian citizens in U.S. and others.

Ministry of External Affairs A good place to start to get to know the Indian government machinery  and other interesting information on events, places and activities in India.

Indian Parliament is another place to look for constitution, judicial and executive arms of the government and more.

National Informatics Center in fact maintains some of the sites for the various arms of the Indian government.