Adyar Cell point - Mobile service shop is there at Adyar signal. (Left to the Standard Chartered bank)
They borrowed my mobile for service and give it back in 2 or three days. Mobile problem was not completely solved but he said it will be ok. you handle this safely.

After 2 or 3 days, again it got repaired. Againn i went to the same shop then he said there is no guarantee for the electronic products.
And next time, he kept my mobile for more than 2 weeks. He didn't know what is the actual problem.

I have checked in the other shop that the problem is only with the battery. But the shopkeeper said he cant repair the mobile and asked me to buy a new one.