2,300 for my Corsair 512MB model no. CMX512-3200C2PT. It's about a year old and comes with a 5-year warranty. Though, I bought it from abroad, so the warranty may not be applicable over here. Rest assured that if you have any issues with the RAM, I'll take it back and return your money.
It uses Samsung TCC5 chips so we'll have to check the dual channel compatibility before you decide to pick it up. It runs at 2-3-3-6 at DDR400.
Get in touch with me if you're interested. Lowest current price presently is about ~75 dollars abroad, which works out to 3,500 Rs.