Airtel SIM card
Regarding Reregistration of Sim

Hi,

I bought an Airtel Prepaid SIM card with 3 years validity on 07. Given Mobile No: 9840938195 SIM NO: 8991400000089877262. SL NO: A992006489609. I used it for 1-2 months, then didnt use. Now I tried to use that SIM in 11. A unregistered SIM message is displayed and it is not working. Is it possible to Re-Register the SIM and use. If yes where should I go. Iam living in Thiruverkadu, Chennai, India.