I still use micromax canvas A1 AQ4502. it is very good phone because the google launched this phone by micromax as android one.
Its one very good advantage is that the uptades of this phone reach very fast to the users but it doesn't have many features and the camera is not really nice it click just ok pics and the phone storage is very small and so do not buy micromax canvas A1 AQ4502.if you want to buy you can buy it in update version.