Hero Motocorp — forcing the customer to take teflon care treatment

I drbibhas have purchase a hero hf dawn motorcycle on 04/01/2017 from sainath automobiles, kharagpur, west bengal (Cst no [protected], tax invoice no 10375). During my two consecutive free services from the same service centre they forced me take the teflon care treatment (350 rupees). According to the service manager if i wont take that treatment i wont be able to get the 5 yrs warranty free. I have talked with some of my friends and they also faced the same situation. This is a very thing whichis going on in that service centre. I request the company to look into this matter and take a tough step to stop this illegal function of sainath automotives, kharagpur