Man Computer paradise is Lamington road in Mumbai
also in Andheri (W) theres Sunil Shopping center
Though price increases by 50 -100 rs in andheri compared to lamington [Grand road (E)]
In lamington I only found one computer shop best(there may be others too)
SHREE GANESH COMPUTER they have price abt 100 rs lesh than the others in lamington trust me they keep their words too.
Phone no. is 23824719 / 23840981
+ bargain a bit they will reduce by 50 - 100 rs also
Also If u r going for andheri one then there go for A & A Computers peripherals
ENJOY