I purchased Micromax A290 last year. Though the phone has good features, I felt cheated when I saw that this mobile can be used at a time with dual sim or one sim and one memory card. If this is the case, in the advertisement it should have been written that one can use at a time dual sim or one sim and one memory card.
The manufacturers of the mobile have cheated customers like us who purchase from online. I can no longer use two sim and memory card at the same time in my Micromax A290 mobile.