Mahindra And Mahindra — Showroom service and faulty vehicle

I have purchased a new bolero in November 2020 within a year there have been lots of technical and maintenance issues have been arrived. I had taken my vehicle foe each service in Deep Automobile Azamgarh Uttar Pradesh, But the worst part is they have not provided us satisfactory services and the managers have fooled us even after full servicing of the vehicle immediately the knocking sound from the engine has been a rise and there is no response either from customer care neither from Deep Automobile in Azamgarh Uttar Pradesh.

Note - The Attachment video is after Servicing from Deep Automobile (Authorized service centre Azamgarh, Uttar Pradesh)