Tata Motors — brake complaint

Address:

Salem, Tamil Nadu, 636004

I buyed tata tiago xz at oct 2016 still now total km runed was 8500 but now in my car unnesasary sound is coming while applying the brake in tata service center they told your brake shoe, drum, brake lining, wheel barring want to be changed otherwise the sound will be continued total cost for this is rs.10300, and these parts are not covered in the warranty, how these complaint occur in within one year.