Micromax canvas a120 — Mother board over heat and no battery backup.

Dear sir, Iam j.krishnamurthy, i was the one of customer of our micromax brand I was brought one mobile on18/06/2015 at BIGC (visakhapatnam, butchirajupalem nad x roads).my handset was very over heat and battery automatically dropped approximately 50% within 10 mints. I was given it 4 times to customer care service center in vizianagaram fro resolving my problem. They told me like your mobile sent to main branch, please come after 15 days for one time. Yesterday I was taken my mobile and refuel it till battery is full. After 5 mints it will convert very over heat and battery down up to 62% with out using of sim card.immediately I was going to service center and showing my mobile to concern person he told like tomorrow you will come and I Will give a another battery, after using of that battery day after tomorrow I will replace the mother board. Please told me sir how many times I will gong to service center, when it was using. so please resolve my problem as early as possible. battery no s/n[protected]V[protected] BATTERY MODEL--------S9111 MIME[protected]-------[protected] SIME[protected]--------[protected] Regards j..Krishna Murthy ph: [protected] [protected]