The current price of HD 5770 1GB in India is between 7500 to 9000, but my frnd you have to do some "Indian talk" to the shopkeepers to reduce the price because they just sell the newest things at a very high rates as compared to the actual value..
Its price ranges from 140$ to 129$(=RS.6500 to 7000) actually. But Indians are selling it for up to 15000/- which is equivalent to 300$......So it is up to you.