The PSU, I inquired costs, Rs. 7,966/- at Lynx India. Its in Chandigarh which is nearest to my hometown so would skip my trip to Delhi if get the GPU too from there. At IT Depot the same PSU was quoted for Rs.8,580/- excluding Shipping Charges.

Now for the GPU I'm confused between 8800GT and HD4850. 8800GT is an old card but is in option cause of the certainity of the fact that it supports PCIe 1.1 standard but in case of HD 4850 I don't know so I'm asking here, is it backward compatible with PCIe 1.1 standard bus? the ratios are like this, 40% for 8800GT and 60% in favour of HD 4850.
If someone can then please tell me the price of both Corsair TX750 PSU and HD 4850 in Nehru Place, Delhi and if possible then Dealer too.