Mahanagar Telephone Nigam Limited

O/o GM(East ), MDS Bhawan, JLN Marg, Minto Road Telephone Exchange,  New  Delhi-110002. 
 

 O/o GM(TY), Karkardooma Telephone Exchange, Plot No.5,Institutional Area, Karkardooma, Delhi-110092.
 

Room No. 103, 1st Floor, Eastern Court, New Delhi-01.
 

Room No 100, MTNL BhikaJi Cama place, ND-66.