It is said most of Airtel prepaid user’s sim card validity is going to expire by end of this year here are few simple tricks using which you can extend your sim card’s validity and enjoy uninterrupted Airtel services.
1) Here is a completely free technique - From your existing Airtel number send a message “PORT
2) Download my Airtel app from google play store. You can check balance, validity on the app also. Now open the app and select the recharge tab in the home menu. Recharge your number with just Rs.10 which offers Rs.7 talk time with lifetime validity. Once done with this recharge, the validity of your sim card will extend for 3 more years. This will work if you recharge from my Airtel app only.
3) Upgrading your sim from 2g/3g to latest 4g sim card for Free. Visit an Airtel customer care center iand request them for a replacement of your old 2g/3g sim card. Customer care representatives will then give you a new 4g sim in return for your old sim card. The new sim card will have lifetime validity