Power Ace PRP10400A Rapid Power 10400 mAh at rs 799 MRP-2495
sorry if i come across as someone judgemental. let me assure you that presently it is not so, for you might have your reasons to order at FK. (say; unused idle credits or some other offer).
if you ordered it for self use and if you feel like it, then do let us know of your views on this portable power pack. ( here → http://www.desidime.com/forums/product-reviews/... )
[in case you missed it, then do not that a similar or same item on Snapdeal currently retailing at 649 (plus 50)
and on paytm at for 699 (minus PB15) (plus 25)]