Kuldeep Goyal, who heads India's largest public sector telecom company BSNL, wants to leave no stone unturned to revamp state owned BSNL. Contrary to the trend BSNL is not willing to give up on its big bet on fixed land lines. So while private operators are sweating it out to rope in more mobile customers BSNL is making landline more attractive. India boasts of 40 million fixed lines