Bharat Sanchar Nigam Ltd. was incorporated on 15th september 2000 . It took over the business of providing of telecom services and network management from the erstwhile Central Government Departments of Telecom Services (DTS) and Telecom Operations (DTO), with effect from 1st October‘ 2000 on going concern basis.It is one of the largest & leading public sector units providing comprehensive range of telecom services in India