|Post the make/model & specs! One of us will tell you if it's good enough or not.|
Do NOT buy a new power supply without knowing what to look for or you're going to end up with more junk. You need to choose a reputable name brand unit, 80 plus efficiency, active PFC, single +12v rail with high amperage, & a decent warranty.
Good power supplies seem to be hard to come by in India & are usually VERY expensive. Do NOT buy from a local vendor unless you know what you're doing, otherwise you're going to get stuck with a crappy iBall or VIP unit. Here's an example of a good one from Corsair: