Tata Motors — New vehicle battery gone down

I'm Maya RV from kollam district of Kerala. My vehicle is TATA Tiago AMT version with vehicle number KL 02 BN -0939. The vehicle had approximately covered only 5000 Kms. We had purchased the vehicle on 2020 December from TATA Motors Gokulam Showroom, Angamaly. Its only been one year and four months since we have purchased the vehicle but now that we have faced a problem. On 14/4/22 on our way from Ernakulam to kollam, it was displayed on the Harman screen 'Software update zero percentage'.So immediately we have contacted the servicing centre executive and he told us that you need to update the software and then only it will get resolved.But since we have not booked for the updation none of the servicing centre was ready to attend us and since we were on our journey they told us that you can even contact the servicing centre at kollam . But since they had the vishu and Easter holidays and since that it was not booked prior they were also reluctant to attend it.But they told us to bring the vehicle today (18/4/22) for updation.But yesterday when we tried to start the vehicle it was not starting. If it was a mistake from our side we would have admitted it for sure. But we didn't knew that the software needs to be updated. The servicing centre had not intimated to us regarding the same .We have only updated it once after purchasing the car. But yesterday (17/4/22) when we tried to start our vehicle, we were not able to start it. I think it's because the battery has gone down since the software update was continuosly being displayed on the screen for these days from 14/7/22. So I called the toll free number and they told me to first call the servicing centres and then get back to them. As per that I went to the servicing centre today in the morning and they told us to contact the toll free number. I tried calling the number many times since today morning but the response I got was that the agents are busy, so to they'll get back to me. But none of them called me till evening. So I tried calling them and finally they told me that the recovery service will come and take our vehicle and hand it over to the nearest servicing centre. So by 8.00 Pm the recovery service çame home and took the vehicle. I' m also very sorry to tell you that your servicing is very poor. When we planned to take the vehicle for the first time, many of our friends and relatives told us that the servicing is very bad. But we were satisfied with your safety features and because of the trust we have on TATA we went against their opinion and took the vehicle of our choice. But now that I have also faced the same issue and also I' m confused why this is happening to the new vehicle.I would also like to bring to your kind notice that if there is any problem with the battery you will definitely have to replace it since the warranty period has not expired. So I hope that you will do the needful at the earliest.