I have purchased NOKIA X in Pune, Battery Back-up is pathetic and the most dangerous thing is about this phone that it starts paining in the back side of your headache.I have always pain in the back side of my head because of this Phone. I am just frustrated because of the extremely worst services, when I went to the shop i.e; MOBILE CAFE shop No. 315, SaiChowk, Pune-411017. they are nor ready to cooperate.The IMIE NUmber is -353070060724164