Bharat Sanchar Nigam Limited (Kolkata) Telephone Kendra (TBZ), Room No. 1014, 10th Floor, CMTS, P-10 ,New CIT Road , Kolkata - 700073,
Bharat Sanchar Nigam Limited (Kolkata) Telephone Kendra (TBZ), Room No. 1014, 10th Floor, CMTS, P-10 ,New CIT Road , Kolkata - 700073,
Bharat Sanchar Nigam Limited (Kolkata) Telephone Kendra (TBZ), 10th Floor,P-10, New CIT Road , Kolkata- 700073,
Bharat Sanchar Nigam Limited (Kolkata) Satyabala Telephone Exchange, 200/201, GT Road (N) Howrah-711107,
Bharti Airtel Limited (Kolkata) Bharti Airtel Limited, Infinity Building, 5th Floor, Salt Lake Electronics Complex, Kolkata-700091, West Bengal
Vodafone Idea Limited (Kolkatta) Vodafone Idea Limited, Srijan Tech Park, 7th floor,DN -52, Sector- V, Salt Lake City, Kolkata 700091
Vodafone Idea Limited (Kolkatta) Islampur Ramkrishnapally Rural Welfare SocietyAt RamkrishnapallyP.O & P.S Islampur, Distt. Uttar Dinajpur (WB ), Pin 733202
Vodafone Idea Limited (Kolkatta) Vodafone Idea Limited, Srijan Tech Park, 7th floor,DN -52, Sector- V, Salt Lake City, Kolkata 700091
Reliance Jio Infocomm Limited (Kolkata) Reliance Jio Infocomm Limited, Godrej Waterside, Tower II, 17th & 18th Floor, Plot No: 5, Block - DP, Sector-V, Saltlake City, Kolkata -700091 Contact No: T.No. 18008893999, Fax : 18008891211,
Reliance Jio Infocomm Limited (Kolkata) At - Ramkrishna Pally PO- Islampur Dist. Uttar Dinajpur PIN -733202 West Bengal