Subscribers while availing themselves of the free SIM cards should purchase minimum top-up voucher for Rs 55 and get talk time for Rs 55.The offer is valid up to August 31 , a release from the BSNL said. Prospective customers should contact the BSNL authorised franchisees and retailers. Top-up coupons at lower denominations for Rs. 10 and Rs. 20 have been introduced with effect from August 20.
Twenty per cent additional talk time is allowed to the recharge vouchers and top-up coupons of maximum retail price of Rs. 550 and above.This offer is also valid till August 31, the release said.