Rs 19 plan is still available on airtel, without any change in the amount. This is the best and the cheapest option to retain airtel prepaid number. I had done a Rs 19 recharge recently, now they do not provide any 3 days grace period with the Rs 19 pack. Also, this Rs 19 pack gives 2 days outgoing validity and incoming validity (it does not give additional 7 days incoming validity as with other packs)
Number retention technique for airtel prepaid (NO Incoming SMS facility):
- Recharge Rs 19. You get 2 days Service validity.
- Make an outgoing call on the 2nd day (last day)
- From 3rd day to 92nd day - No recharge (TRAI policy applies for 90 days retention). Incoming Calls also stop. Note that airtel blocks selective incoming SMS (like from Banks, OTP etc.) but keeps sending their own promotional SMS.
- 93rd day: Recharge Rs 19 for 2 days service validity again.
- Repeat the above procedure.
Summary: So for
Rs 19 x 4 recharges =
Rs 76, you will get total
92 days x 4 =
368 days validity