http://www.snapdeal.com/product/zeb-450w-t-sata-computer/427762?utm_source=earth_feed&utm_campaign=21 Is this psu good enough to be connected with 7750 hd and used for gaming?
forums.tomshardware.com
You'll find reviews, critiques, answers like the above post all over the net. Basically Zebronics has a pretty bad reputation, even in Indo-Asiatic markets where they are most prevelent.
Over there, your better, budget, choices are Corsair CX, Corsair CXM, Seasonic S/M12-II, Seasonic G, Antec HCG/M, and if you absolutely must, a Corsair VS. The new black/silver series, not the old colored blocky number series.