Deepak if you can come to Hyderabad then you need to go to Arun Computers,Chenoy Trade Center(CTC),Secunderabad for overall best prices. I bought an Intel 3570k Gaming PC in April/2012 for best prices and 1 one of the TDF members Mr.Gosala also bought almost the same below config except an Intel CPU&MB in Nov/2012. But your budget is 55k at max, so here is the configuration I recommend:
1.AMD FX 6300 (6 Cores) -6900,
2.Asus M5A97 Evo (6+1 Phases) -7600,
3.Corsair Vengeance 4GB 1600MHz -2500,
4.WD Blue 1 TB -4300,
5.Corsair 300R-4000
6.Corsair GS600 -5000
7.Sapphire HD7950 3GB Vapor-X Edition -24000,
8.Asus 24B5ST 24X DVD-RW -1000,
9.Dell S2240L 22" IPS LED -8500.
TOTAL -55400.
Best Vendors in CTC,Secunderabad:
Arun Computers,
PL Computers.
Also ask for Mr.Ramu in Arun Computers and visit the shop only after 12pm because by then they will settle down and you can ask as many queries as you want about different products. They have all the products from numbers 2-9 except 6&1. So it may take couple of hours. You ask for a overall discount after confirming to buy from them.OK. Mr.Ramu Cell No:9246548162.
Computer Dealers from Tirupati and Chennai might dupe you by recommending components of their choice. Even If you bought from Hyderabad still you can RMA your parts in Chennai right.