Khivraj Bajaj — Dominar 400

I recently left my bike service at Khivraj bajaj- Teynampet, chennai. The customer service as well the service quality is worst over there. they charged me Rs 16290 for nothing.

They charged me twice for replacing the parts, as well as they broke my secondary display in my bike which was in good working condition when i left my bike at the service station.

I would like to dispute my charges back as well as i would like to have the part replaced for free. If not, im taking this legally as well as i will fie a complaint in consumer portal.