Hyundai Motor India — gearbox complaint

Address:

Rajbhavanam muthukulam south po, 690506

Sir, i brought a new hyundai grand i10 car in the date of 30th october 2019 from the dealership of (Ss hyundai sales, kayamkulam opp. Elmecs multispeciality hospital, kareelakulangara, kayamkulam, alappuzha, kerala). They gave me a difficult car, while driving after 300 km i feel some noise into the gear box. I complained about in the service section when it was first service (1200km). But they returned it without checking. After that drove the car for 800plus km i still feel the same problem. It back to the showroom in the date of 28th november2019. They untied the car's gearbox fully. Yet they could not find the complaint.
Car details
Grand i10 magna (Petrol)
Temporary
Registration
Mark - kl/29/tmp/2019/7882
Engine number - g4lakm269156
Chassis no - mala851clkm019432
Purchase date - 30/10/2019
1st service date - 19/11/2019
Last admit date - 28/11/2019
Regards
Swaraj r
[protected]