Hero Motocorp — defective speedometer and engine

Address:

754142

I purchased a hero new glamour i3s model motorcycle from rohan motors, bhubaneswar, odisha on 10.04.2017. After 8 months, the speedometer of the motorcycle did not work and the colour of the engine is deteriorating gradually. So i complained near one of the hero service center i. E paradeep motors, paradeep for change speedometer and engine of my motorcycle. Its almost 3 months gone. Still my problem has not been solved. Please review my complain and solve as soon as possible. Details of my motorcycle as follows;

Engine no:ja06ehh9c07153
Frame no. Mbljak01xh9c06127
Model: glamour