Component | Make | Price Processor |AMD Athlon II x4 635|4000
Motherboard |Asus M4A78LT-M LE|2700
RAM |2GB DDR3 kingston|1000
Graphic Card |Sapphire HD5670|5000
HDD |Seagate 500GB 7200.12/ WDC 500GB Blue|1700
DVD Writer |LG 22X SATA DVD|900
PSU |FSP Saga II 500W|2000
Case |Zebronics Bijli|1100
Monitor |BenQ 22" Full HD|7300
| Total |25700
If you do decide to go for this config, here is a gigabyte alternative to that asus board, essentially the same features and price, just that it aint asus.
Gigabyte MA78LMT-S2 (review)
also, you can get a 6670 over a 5670, just costs Rs500 more and an FSP Saga II 350 is sufficient for it, costs Rs1500, so the cost turns out to be the same and you gain 15% performance..