[Resolved]  Tata Docomo — network not available on docomo prepaid

Address:

Chennai, Tamil Nadu

i am unable to make any calls/ sms on docomo prepaid sim. it says "mobile network not available". i thought its phone problem n put the sim in other phone but still encountered the same problem. I have been using docomo prepaid sim from over one year. this is the third time its happening. Its really annoying.