My mother has bought karbonn titatinum octane. I dont recommend this phone to anyone. After the purchasing of few months only the screen of the mobile got blanked and it is very difficult to find karbonn service center. After showing to them they said that it screen has got been damaged and it will be sended back to the company for replacing the part.
After 3 months I got the phone back and now it us giving heating problems also. It will get heated very frequently. Android update is also not their in the karbonn mobiles. But it looks are good as compared to other. You will also difficult to find its accesories like back cover which will properly fit on.