Tata Teleservices Limited, Level 3, Max Towers,Plot No. C-001/A/1, Sector 16-B, Noida, Uttar Pradesh-201301
Uttar Pradesh
भारतीय दूरसंचार विनियामक प्राधिकरण
Telecom Regulatory Authority of India
(IS/ISO 9001:2015 Certified Organisation)