Hero Motocorp — Starting trouble, turns off while running

Address:

Sony Motors, Kodungallur, Thrissur, Kerala India

I have been complaining the issues since I bought the 2 wheeler (Hero Mastero 125).
It's been 3 months in the service center, and still compliants remain the same.
I bought the vehicle from Sony Motors, Kodungallur, Thrissur, Kerala.
Ever since I asked for proper check, they still do the same.
It went in the service center for 1 compliant and came out with total damage.
I want my 2 wheeler in good running condition.
I didn't bought this to put in showcase.