Head Office: O/o Special DGT Delhi LSA- 5th Floor Mahanagar Doorsanchar Bhawan, Near Zakir Hussain College, Jawaharlal Nehru Marg (Old Minto Road) New Delhi-110002

Suboordinate Office: O/o Special Director General Telecom, Delhi LSA, 5/6th Floor, MTNL Telephone Exchange Building, Nehru Place, New Delhi-110019