Tata Docomo — tata docomo - my number was stopped suddenly

Address:

Pune, Pune, Maharashtra, 411057

Suddenly my Tata Docomo number has been stopped from 7th MArch 2019.

It was working for last 4 years. How can I port that number to Airtel?

IT seems there is no working Customer Care number for postpaid numbers of Tata Docomo.

121 /[protected]Toll-Free) - was only for PRepaid.[protected]Toll-Free) did not receognize my 10 digit number.

Why company owned by esteemed Mr. Tata did not port all teh numbers proactively to Airtel? I felt really bad, after number was suddenly stopped.