My favorite links

1. Indian States Report - Nice quarterly newsletter dedicated to all aspects of India States collecting. Very nice cataloging of Rajasthan Overprints.
2. eBay - The world largest Internet auction with about 100,000 items weekly including are many nice pictures. For India collectors mainly ID:  anil2000,
3. Philatelic Centre - Premchand Jaiswal is one of Indian auctioneer. The site is not yet done, but you could e-mail to him
4. Sukhani - One of oldest Indian auctioneer.
5. India Study Circle - Study organization dedicated to India and generally to South Asia.
6. Philatelic Congress in India - Similar organization in India.

7. Mafatlal - He is friendly collector, he has some interesting offers from this area.

8. S.A.Stamp Co. - Auction and direct offers from Patiala (Sanjay Dhawan).