TVS Motor Company — Engine sound come and not solved the problem

Address:

Sri Laxmi Balaji service center tolichowki

Hello I purchased TVs raider 125cc 6 months before.in my bike sound is come from engine so many times I give my bike to Sri Balaji service center at tolichowki but they not solved my bike problem very wrost service by Sri Balaji service center.
I requested you to please solve my problem as soon as possible.