TATA - Repeated Problem inspite multiple times visting showroom

Vehicle MH**BG**** model ****.S went through engine problem and went for service on **-Aug to TATA showroom -ALL TECH AUTOMOBILES MUMBAI.It was told to change the Enginee and engine got changed and vehicle was deliverd on **Aug.We faced again over heating of engine issue again and vehicle halted in the trip which made us to pull vehicle again to showroom ,It was observaed as sensor issue which got addressed and sent back.We have asked to look in to wiring as it was observed as malfuncitioning ,Showroom told that problem is resolved and delivered.After second time delivery we noticed problem in * day went to showroom problem got addressed.Vehicle is moving to Manglore and halted again understood as wiring issue which led to huse loss for us.Inspite repeated services in TATA showroom our problems are not resolved.Vehicle is still in problem.