New Delhi : State-run telecom service provider Mahanagar Telephone Nigam Ltd (MTNL) Tuesday announced per second billing scheme for its 2G and 3G customers in the Delhi and Mumbai circles. Under the plan, calls made within the MTNL network will be charged half paise per second, while calls to other networks across the country will be charged one paise per second, the company said. MTNL will... full story