If your prepaid Airtel account  balance is low (between 0 & 5 Rs) or your in a location where you cannot recharge your Prepaid account then you can get RS 10 for Free* with Airtel “Always ON” scheme.

Just type a message “Loan” and send it to 121(customer care).
*Did i said free no,When you recharge your prepaid account again (eg 100 RS), Airtel will dedcut Rs 11 from you balance ( Rs. 1 for Service Charge ).

Useful to make Emergency calls.