― From : Piyush TankTO get the free trick, ∙ 1) Activating ZERO Rental Plan. ∙ Send SMS GPRS to 4666 (for prepaid) .. for Postpaid user call customer care.. and they will tell you 'how to activate it' ∙ After sending an SMS . you will receive a Msg redarding GPRS activation . Normally it takes 3-4 hours..and ∙ If you didnt activated within one day, call up customer care to activate GPRS Zero Rental Plan.which is 2 paisa per kb. ∙ 2) Receiving Settings ∙ [...].