Power button of iphone 5 working only when clicked on left side

Dear all,

The power button of my iphone when clicked on left side its working ,

when clicked on right side which i do since i am right handed its not working.

I have only 11 days of warranty left,

My question is generally what happens if i give it to service under warranty?

i am from India we have some third party service providers present here like ample technologies etc...

Thanks for your help in advance