Karbonn a15 is very bad phone . the battery backup is very bad. It hangs many times. Gjjbnkk h jjgh k khb knnhkm n v h knn j k jkk vh j jbb j jk hk n b jkhhhkkbhjh j bj jk jkg jj gj j vhhjkjb bjjnbbh jkmbvfg gjjbvfh jjjbcfgjj . .
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Its price is high then its feachurs . and bettery is not available in the market.thnx