BSNL has a 512kbps unlimited for 1350 I think. They don't really have high speed plans under 1500. If Airtel is available in your area, you can go for them. They have 512kbps day / 1 Mbps night plan for 1299, and 1 Mbps unlimited for 1699, both plans included goodies like free calls, speed on demand, games on demand.BSNL does however have Home Combo plans in some areas for 500, with night unlimited. Speeds are "upto 2 Mbps", subject to a minimum of 256 kbps.
