Section 12(11)(c) in The Integrated Goods and Services Tax Act, 2017
(c)in cases where mobile connection for telecommunication, internet service and direct to home television services are provided on pre-payment basis through a voucher or any other means,-(i)through a selling agent or a re-seller or a distributor of subscriber identity module card or re-charge voucher, be the address of the selling agent or re-seller or distributor as per the record of the supplier at the time of supply; or(ii)by any person to the final subscriber, be the location where such prepayment is received or such vouchers are sold;