U recharge any Dth above RS 250 to get cash back RS 25 through Airtel money app. Cash back is started almost five month. Inital it was three time one user . now they reduce to one. They update month coupon for cash back. This July coupon not updated till now.
Note: u have use one any mobile no in mobile Airtel money app. U can't add another number next time.I already updated in coupon thread