Um Motors — coolant oil and radiator

Address:

Nandhanam chennai, Chennai, Tamil Nadu, 600041

I have purchased renegade commando having registration no. Tn07 cl 9966 united motors chennai on 10/12/2017. After 2 to 3 months the bike has developed starting problem. After first servicing the problem was resolved upto 50 %. But the bike has developed some more problems such as
1) knocking from engine
2) head light problem
3) when clutch is engaged the bike comes to hault.
4) coolant breakage, radiator fan problem
5) noise from rear side of bike.
I have serviced the bike many times. But savali motors has failed to repair all above problems. I had discussion with manager they won't support me