airtel How to Add/Delete/Change/Check FNF

Add a Number dial  *121*4*1#
Or Type ADD016XXXXXXXX (FnF number) to 7353 (free)

Delete a Number dial *121*4*2#
Or  Type "DELETE016XXXXXXXX" (FNF number) to 7353 (free).

Replace a Number dial *121*4*3#

List or check FnF numbers dial *121*4*4#