Micromax S 300 Bolt — First charging problem, after repair second slot of sim not detected in phone

Address:

Pune, Maharashtra

We have Micromax S 300 bolt model with us in warranty period.Within three months charging problem started.Phone was not charging.We submitted handset for repair in Pune Mitramandal Chowk authorized service center.Very hard rush after four hours we discussed the problem they kept handset fro three days for repair.Charging problem solved.
This is duel sim model, but second sim not detected / not active new problem arrived.
We called again to submit handset for repair.