Tata Docomo — unable to make/receive calls in roaming

Address:	400101
Website:	www.tatadocomo.com

Hello,
I am using tata docomo sim card in mumbai. I am using my mobile number for more than 7 years in mumbai. Nowadays i am in rajasthan for some work.

And i am not getting network of tata docomo. When i select the option of "select operator manually" it is not showing tata docomo in the list. And it is select airtel network in automatically network operator selection by default.

Now i am unable to make calls and receive any calls on this number.

Even i am unable to make customer care (198 and [protected]) calls from my number as it says you are not dialing the right number.

My email address is - [protected]@gmail.com