Highlights The data add-on of Rs 225 allows a user to consume high-speed data of 2.2GB. The Rs 225 add-on gives 4.2GB data benefit which can be used on top of your postpaid plan’s data benefit. BSNL is providing just 3.5GB data benefit with the Rs 240 add-on plan. Bharat Sanchar Nigam Limited (BSNL) has come up with postpaid data add-ons starting at just Rs 50. The telecom company also has an annual data add-on for postpaid subscribers of Rs 365 that gives 1GB of data per month for 12 months and the premium data pack from BSNL is priced at Rs 1,711 and offers 30GB of data. These data plans are just 2G and 3G data plans because BSNL is yet to launch 4G services in the country.