Mahindra Two Wheelers — sound from the engine of mahindra centuro and rear brake related issues

Address:

Hyderabad, Andhra Pradesh, 502032

From 1st january, 2017 to 30th november, 2017 i gave my bike for repairing and servicing for 6 times. I have been complaining the service people about the sound coming from the engine and some thing physically touching the rear break always. They have been telling some stories as the cause of the sound. Last time, the sound from the engine started coming just after travelling 5kms from the servicing center i. E. Yuvika automotives, r. C. Puram, patancheru. I brought back the bike and had shown them the bike and told them that last 5 times also, the sound was like that only even after repair and reminded them that i was reminding about the same problem all the time and told them to check the job card to check whether i am telling true or lies. If i give that bike for repairing out side mahindra service center, the problem may be solved. But as there is 5 years warranty, i am not going out side. Whom should i complain about this.