AirTel Kolkata - AirTel - Bharti Cellular Limited is part of one of India's largest private integrated telecom conglomerate, Bharti Enterprises. It provides cellular services in the city of Kolkata.
Eastern Telecom Projects Kolkata - Kolkata based organization involved in the planning and execution of major long distance transmission and switching projects in the eastern region of India.
Hutchison Telecom East Kolkata - Hutch Kolkata is part of Hutchison Whampoa Limited and provides cellular services in the city.
Kolkata Telephones - Kolkata Telephones is the largest metro district under Bharat Sanchar Nigam Ltd (BSNL) and the third largest in India. Besides telephone services it also offers CellOne mobile connections.
Reliance Infocomm - Reliance Infocomm offers a complete range of telecom services including Reliance IndiaMobile.
Telecom Stores Kolkata - The website provides information about tenders of the organization.