BSNL STV Plan 105: 105GB Data in 7 Days, After 7 Days 40kbps. Bharat Sanchar Nigam Limited (BSNL), a state-owned telecommunications giant, has remained useful to low-end consumers with its Special Tariff Vouchers (STVs). One of its most used products is the BSNL STV 105 that offers 20GB of 4G/3G data at high speed, then […]