Modi Hyundai — Fraud in vehicle servicing, Vehicle is in Hyundai service showroom from July 2022 to till date

Company - Modi Hyundai
Address - Kalyan servicing center of Hyundai
Name of the person - Rakesh Utekar
Manager name - Nitin Gayakwad

My car is in servicing center from July 2022. The person (Rakesh Utekar) who was working on it has done fraud in money and every time he came with new reasons and delaying the car servicing.
Management is also taking it very lightly. Its almost 4 months. I am not sure if Hyundai people are using my car for some other purpose and giving the reasons for not returning the car.
I have audio recording of calls and whatsupp messages as proof for this fraud.
Please help with this issue and do the needful as early as possible.