Airtel offers two plans for its prepaid customers in Kerala on the occasion of onam 2013. Recharge with RS 125 through airtel website m.airtel.in and get 25% extra 2G internet (1.25 GB). Offer valid till 17 September 2013. Onam special ISD Power Pack RC 199 – Get 300 ISD Gulf calling talktime valid for 15 days,for balance dial *123*27#.