Bharat Sanchar Nigam Limited (Mizoram) Mizoram Consumers' Union Hqrs., Aizawl, Lalat Chamber, Tuikual "S" Temple Square, Aizawl-796001
Bharat Sanchar Nigam Limited (Madhya Pradesh) Basant Vihar, Near Old Post-Office, Burhar, Dist-Shahdol(M.P.)-484110
Bharat Sanchar Nigam Limited (Kolkata) Telephone Kendra (TBZ), Room No. 1014, 10th Floor, CMTS, P-10 ,New CIT Road , Kolkata - 700073,
