Airtel — mnp related issue

Address:

Amritsar, Punjab, 143001

Sir my no is [protected], my number disconnected due to n on payment due to some reason. When i contacted airtel amritsar they said number return to parent company i. E bsnl. But when i go to bsnl amritsar office they show me the lrn of airtel where number is noe i. E 3009. But airtel refuse to accept. Isuffer a lot because this is my old number. Which i want to port in bsnl.

Pls do some thing.