Maruti Suzuki India — sub: fault with the car service

Sir,
I, Govinda Rajan.P a Keralite resides at Melattur in Malappuram Dt, would like to bring the following matter into you kind attention.
I owns a Maruti Wagon R bearing No: KL-13 L 4401 and I met with an accident on 3rd July 2017while going to Calicut with my family. The damage to the car was not so serious. The vehicle hit on the back bumper of a car, which met with an accident that I could not understand due to heavy rain, and my bumper and bonnet got slightly bend. As the damage was not so heavy, I drove the car back to Manjeri, after consulting with the showroom, and given the vehicle, there at around 6.00PM on the same day.
I got repaired the car only on 2nd August 2017. On 12 the of August 2017 I went for a ride, a slightly long.I felt some abnormalities during the journey and however returned without much difficulties. When returned on 13th Aug I felt a bad smell and one of my friend, who happened to be driver for many years, checked the vehicle. To our surprise, there was no water in the radiator and coolant in the container. Moreover, when filled with water, the radiator is found to be having leak.i never thought of such possibility as the vehicle got serviced, that too have some work with radiator, just ten days ago.
When I contacted the showroom customer care, ( Sri. Ajith, ) at 11.45 AM today and told everything happened to him. He informed me that the service manager will contact me. However no body has contacted me till this moment(3.00PM) that shows how irresponsible they are.
Now I feel that I have narrowly escaped from a mishap. If I have driven the car without water in radiator and coolant, anything could have happened.
I dont know whether I will get justice or not. But I hope, if this complaint helps to avoid such mistakes in future, my goal is fulfilled.
Expecting a favourable action from your end.
Thanking you in anticipation,
Regards