I use suvi v10..with moderate use of 3g, it lasts 51 hours..very happy with it..have tried all possible ROMs in this forum but nothing like suvi v10.
Also, I use the greenify tool..probably that helps..
Sent from my Micromax A110 (Canvas 2) using xda app-developers app
Micromax Canvas 2 A110
LegoIce 4.2.2 + Suvi Booster Script V2.