1 | Airtel
Corporate office  – New Delhi  |  Establishment – 1986 |
Business – Telecommunications & satellite TV | Website – www.airtel.in |
Bharti Airtel Limited is India’s largest telecom company headquartered in New Delhi. Founded by Sunil Mittal in 1986 the company is fourth largest mobile operator in the world. Products offered y company includes  mobile commerce , 2G, 3G and 4G wireless services, fixed line services, IPTV, high speed DSL broadband, DTH and enterprise services.
2 | Reliance 
Corporate office  – Navi Mumbai, Maharashtra |  Establishment – 2004 |
Business – Mobile, Satellite TV and telecommunication | Website – www.rcom.co.in |
Reliance Communications a flagship company of Reliance Group was established in 2004  and is the second largest telecom operator in India. Headquartered in Navi Mumbai, the company has more than 150 million subscribers. The company’s product offerings include wireless, broadband, national and international long distance services.
3 | Tata docomo  
Corporate office  – New Delhi |  Establishment – 2008 |
Business – Telecommunication sector | Website – www.tatadocomo.com |
A Tata Group company providing cellular service on the GSM, CDMA and platform . It is among the top telecom companies in India  and the first Indian telecom company  to launch 3G services in India.
4 | Vodafone
Corporate office  – London, United Kingdom |  Establishment – 1991 |
Business – Telecommunications | Website – www.vodafone.in |
Vodafone is a leading global telecommunications company with operations in over  30 countries . Headquartered in  London, the company ranks amongst the top 4 telecom companies globally  in terms of subscribers and revenues. Company  owns 45% of Verizon Wireless, the largest mobile telecom company in the US measured by subscribers.
5 | Idea 
Corporate office  – Mumbai, Maharashtra |  Establishment – 1995 |
Business – Telecommunications | Website – www.ideacellular.com |
An Aditya Birla Group Company with over  121 million customers . Idea is India among of the top 5 telecom companies which is offering 2G and 3G services with a traffic of about 1.5 billion minutes a day.
6 |  MTNL
Corporate office  – New Delhi | Establishment – 1986 |
Business – Telecommunications  | Website – www.mtnl.net.in  |
Mahanagar Telephone Nigam Limited is an Indian state-owned telecommunications company headquartered in New Delhi. MTNL provides services in New Delhi  and Mumbai in India and Mauritius in Africa.  It was incorporated in  the year 1986.
7 | Aircel
Corporate office  –  Chennai, Tamilnadu |  Establishment – 1999 |
Business – Telecommunications | Website – www.aircel.com |
Aircel group provides messaging, wireless voice and data services in India. It is a joint venture between Sindya Securities & Investments Private Limited and  Maxis Communications Berhad of Malaysia.
8 | MTS
Corporate office  – New Delhi |  Establishment – 2008 |
Business – Telecommunications | Website – www.mtsindia.in |
Mobile TeleSystems (MTS) is a subsidiary of  Sistema a Russian conglomerate. MTS provides wireless voice, messaging, broadband Internet  and data services in India. The company has more than 16 million customers.
9 |  Uninor
Corporate office  – Gurgaon, India |  Establishment – 2009 |
Business – Telecommunications | Website – www.uninor.in |
Uninor is an Indian mobile service provider   based in Gurgaon. It is a Telenor Group company offering mobile data and voice services based on the GSM platform. The company has over three crore subscribers in Goa, Gujarat, Andhra Pradesh, Uttarkhand, Bihar, Uttar Pradesh, Jharkhand and Maharashtra.
10 |  BSNL
Corporate office  – New Delhi |  Establishment –  2000 |
Business – Telecommunications | Website – www.bsnl.co.in |
Bharat Sanchar Nigam Limited  is a state-owned telecommunications service provider  established  on 15 September 2000.  It is the fourth largest mobile telephony provider and largest provider of fixed telephony  in India.
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