Bharat Sanchar Nigam [BSNL] — BSNL not letting me port

BSNL is not letting me port my number. It is giving me a message of contractual obligation even though there was no such contract signed. I registered a complaint with the customer care, who was avoiding me everytime, on 18/12/2022. They said it would take 48 hours to get resolved. But it was still not resolved on 30/12/2022. They are just not letting me port. This problem exist for two of my numbers. They just want me to keep on doing a recharge every month in the hope that they will let me port. They are not even giving me details of the contract so I can end it. The customer care is just avoiding by saying it will take 24 hours more everytime. Please resolve this as soon as possible.