Tata Docomo — please reactivate my prepaid sim card

Hello,
I'm using tata docomo prepaid number ([protected]) from past 6-7 years.
Now i'm out of my prepaid circle (Bihar/jharkhand) from 2 years.
I'm in delhi now.

Recently i found that my mobile number is deactivated.
Also the number is linked to my bank accounts and aadhaar card.

I searched for tata docomo store near me on tatadocomo site, and found that i have to visit tata indicom store instead.
So i visted tata indicom store situated at connaught place, new delhi on 3rd of february 2018.

The representative there didn't respond to my query well and went on his call, me still standing there.

Please let me know if i can get my nubmer back or not, and if possible, guide me in activating my number back.

Name : rajeev kumar
Alternate contact number : [protected]
Email id : [protected]@gmail.com