Currently, Tata Docomo mobile service is available in the following circles:
Andhra Pradesh
Bihar & Jharkhand
Gujarat (3G)
Haryana (3G)
Himachal Pradesh
Karnataka (3G)
Kerala (3G)
Kolkata (3G)
Madhya Pradesh & Chhattisgarh (3G)
Maharashtra (excluding Mumbai) & Goa (3G)
Mumbai
Orissa
Punjab (3G)
Rajasthan (3G)
Tamil Nadu (including Chennai) & Puducherry
Uttar Pradesh East
Uttar Pradesh West (3G)
West Bengal (excluding Kolkata), Andaman & Nicobar Islands & Sikkim
Tata Docomo does not offer services in Assam, Delhi and the North Eastern states.