Frankly it is no way that you can get a decent graphic card in a pc below about 40k and then also the other components will be just below what you may not want to go.
To go for a acceptable pc you may need to shell anything between 50-70k or above.
But,if not all that then you may give this a thought.
Firstly,do you want a pc for gaming?
THese are the approx likely prices.
Amd 3000 winchester 939,about 7.5k
msi mobo with graphic card,ask others the name,should be 6.5-7k,though nor the performance,features or graphic card be good/brilliant etc.
512mb ddr 400 hynix(maybe 2.5-3k)
corsair (3400 + 4%vat in delhi)
80gb 7200 samsung/seagate,2650
maxtor-2500(may be hotter for indian environment)
cd rom drive/dvd drive/cd rw,600-800,1200-1700,1400 and up rough prices maybe starting too low for cd rw
cabinet + atleast 350watts power supply,preferably 400watts,about 2000,+-
15" monitor ,4500 approx