I did manage to get the system for 17.3 thousand INR without bargain from Cassette World , Lamington Road. I always recommend shop for all h/w needs.
The config changed a little:
CPU : AMD Athlon XP2 7750 2.7 GHz 3Mb cache -- what I wanted
HDD : 500 Gb -- Western Digital ( the dealer recommended WD on Seagate)
MBD : M3A78-EM HDMI (is almost the same as Asus M3A-H/HDMI but cheaper)
RAM : 4 Gb 1066MHz G.Skill (wanted only 2 Gb but again recommended by dealer)
Bought everything last Friday and even assembled it- all fine.
Loaded WinXP SP3 - all fine.
Loaded all drivers - no sound. Spent around 15 hrs and finally sound. There's some conflict with WinXP SP3 and HD sound drivers. Had to install this patch first and then loaded the drivers again. All fine now.