AMD FX 6300 3.5 Ghz processor (should be below 6.5K after 1st Sept)
ASUS M5A78L-M/USB3 Motherboard (4.3K at Flipkart) /
MSI 970A-G43 Motherboard (4.9K)*
Antec VP450 PSU (2.7K)
Corsair / G.Skill 4 GB DDR3 Ram (3.2K, hurry up before the price goes up)
Seagate Barracuda 500 GB Desktop Internal Hard Drive (ST500DM002) (3.25K)
Set aside 2K for a local cabinet.
Total - 22Kish (Troll your local market for better bargains)
Could not find 7770/7750 so
MSI AMD/ATI R7 250 2GD3 OC 2 GB DDR3 Graphics Card (6.5K).
It will serve your purpose and does not need extra power supply.
Grand Total - INR 28.5K
( * If you hurry and get both the MSI motherboard and the gfx card, Flipkart will give you 10% discount on the total price (4.9 +6.5 = 11.4K) so you will get 1.14K off and a better motherboard
)