I bought this from another source.
I have used various other phones like Samsung, Moto, Gionee, Lenovo, Htc, etc. This is by far the best phone I used.
After two months of using this phone I have analyzed the following:

Pros:
Ram- 3gb, no lag, even high end games like Brothers in Arma run smoothly.
Storage- 16gb internal, expandable upto 128gb,. Ample space.
Display- amazing clearity and high resolution display.
Camera: both front and back are upto the mark.

Cons:
Battery: avg. of 6hrs. Sh...

Ok but not perfect.

after 6 months in this mobile i face battery problem .....

Good phone but battery is a con
Over all the phone is good enough from price point of view.

Plz Dont buy this useless,phone....battery drains like rocket and it takefull chrge up to 2 days until fully chargedin and it will remains the batry for onlymedical 4 hours..stnd by tym 5 hours......All tym misbihavefull and It has only 256 mb ram 3gb doesnt work at all......i received this phone last month and iam fed up.with thisfull worst phone....u can hveget,3g phone at this prise....too better than kult....plz by only,branded phones

Mobile hanging problems irritated with me

Superbbb mobile......

very good phone i use this phone since 9 months its works good & i got a version 6.0

not goodat batery very hit mobile

The earphone that came along with the handset was already broken and was of the worst quality. The 50 Rs. earphone which we buy in trains is 100 times better than this one.
Handset is good.