East Zone

West Bengal - Kolkata TATA Teleservices Limited,
PS Srijan Tech Park,
DN - 52,15th Floor,
Sector - V, Kolkata, West Bengal - 700091 Fax No: 033-66665000

Rest of West Bengal TATA Teleservices Limited, PS Srijan Tech Park, DN - 52, 15th Floor, Sector - V, Kolkata, West Bengal - 700091. Fax No: 033-66665000

Orissa - Bhubaneshwar TATA Teleservices Limited,
Module B & C, 3rd Floor,
Fortune Towers,
Chandrasekharpur, Bhubaneswar - 751023
Fax No: 0674-6665001

Bihar & Jharkhand - Patna Tata Teleservices Limited,
3rd Floor, Jeevan Prakash Building,
Frazer Road,
Patna 800001 Bihar
Fax No: 033-66665000