Load #300 recharge card on your airtel line
Send
BBCI3 in capital letter to
440
you will receive an error message telling you your message
was not recognized
Goto message again send
BBUD to
440 they will give you 80MB
Remaining 200 left
Now send
BBCI3 again
You get 3gb
Check your data now with @*141*712*0#
Note: This does not work on all sims
