problem with gear box

hi, i purchased renault kwid from win win automobile in bhopal. and after runing the car for only 3500 kms just after 10 months it statrted giving problem. As the car broke down on 14 aug 2017 far away from bhopal. it was due to knocking sound from engine and mechanic said ut was beacuse gear box got damaged and seems to be manufacturing fault. as none of the otherbrancd cars have problem with engine or gear box so early. even though it got repaired by servcie center but it destroyed the trust on renaultabout it claims of good quality engine.