Tata Motors — Poor sales service of Dealership

I have booked Altroz XE Rhytm from Shankar Motor Patna, Bihar on 5th September 2021. I asked them to deliver vehicle on 2nd November 2021. They suggested me to take delivery on 17th September. I told them for sure we need delivery on 2nd November only and they agreed. Now they don't have any vehicle and neither they are able to provide any update. They sold the booked vehicle on 17th September and now they are not able to answer any questions. Even I spoke with G.M of Shankar Motor and everyone make excuse from their end and ask me to speak with other concerned people. And the other concerned people ask me to talk to the next people and it goes on.
@Tata Motors
I request you to take action.
I believe and trust TATA group.