Indian Railways — ac on b1 compartment not working - train no:16021

Ac not working since the time train left from chennai central (16021, 2-may-2018). Multiple complaints raised you the technicians and the ticket. Checkinh officer. No one was able to solve. The doors of the ac coach has a huge gap and i believe that could be causing the cool air to flow out of the coach. I'm aware this issue cannot be solved today, but the railway authorities need to at least do their basic checks before the trains are moved out of its shed or ready for their journey. It's getting too hot in here and very uncomfortable.