India's telecommunication network is the second largest in the world by number of telephone users with 1179.49 million subscribers as on 31 January 2021. It has one of the lowest call tariffs in the world enabled by mega telecom operators and hyper-competition among them. India has the world's second-largest Internet user-base with 747.41 million broadband internet subscribers in the country.
Reliance Communications Limited (RCOM) was an Indian mobile network provider headquartered in Navi Mumbai, Maharashtra that offered voice and 2G and 3G and 4G data services. In February 2019, the company filed for bankruptcy as it was unable to sell assets to repay its debt. It has an estimated debt of ₹500 billion against assets worth ₹180 billion.
Bharat Sanchar Nigam Limited is a central public sector undertaking headquartered in New Delhi, India. It is under the ownership of the Department of Telecommunications, Ministry of Communications, Government of India. It was incorporated on 1 October 2000 by the Government of India. Its top official is designated as Chairman and Managing Director who is a central government civil servant of the Indian Communication Finance Service cadre or a central government engineer of the Indian Telecommunications Service cadre. It provides mobile voice and internet services through its nationwide telecommunications network across India. It is the largest government-owned-wireless telecommunications service provider in India.
The Orange brand in India, through a complicated set of mergers and divisions, was acquired and eventually retained by Orange S.A.; and currently operates as Orange Business Services India.
Tata Tele Business Services Limited (TTBSL), formally known as Tata Tele Services Limited (TTSL), is an Indian telecommunications service provider based in Mumbai. It is a subsidiary of the Tata Group, an Indian conglomerate. the company provides information and communication technology (ICT) solutions for businesses in India.
Mahanagar Telephone Nigam Limited (MTNL) (d/b/a MTNL) is a 'Navratna' Category Public sector undertakings in India which is in turn under the ownership of the Department of Telecommunications, Ministry of Communications, Government of India. Headquartered in New Delhi, India. MTNL Provides services in the metro cities of Mumbai and New Delhi in India and in the island nation of Mauritius in Africa. It had a monopoly in Mumbai and New Delhi until 1992, when the telecom sector was opened to other service providers. "एमटीएनएल है, तो सही है" {"MTNL hai to sahi hai"} (Meaning: If MTNL is there, then everything is fine) & "Transparency makes us different" is its motto. The Bharat Sanchar Nigam Limited currently holds 100% of its stock. . As of June 2021, it has 3.28 million subscribers. It is also a wholly owned subsidiary of a central public sector unit.
The Aditya Birla Group (ABG) is an Indian multinational Fortune 500 company headquartered in Mumbai, Maharashtra. The group has a presence in 36 nations. As of 2022, the company's revenue is worth $60 billion and derives over 50% of its revenue from its global operations.
Tech Mahindra is an Indian multinational information technology services and consulting company. Part of the Mahindra Group, the company is headquartered in Pune and has its registered office in Mumbai. Tech Mahindra is a US$6.0 billion company with over 148,000 employees across 90 countries. The company was ranked #5 in India's IT firms and overall No. 47 on Fortune India 500 list for 2019.
OnMobile is an Indian telecommunications company, headquartered in Bangalore. It offers products such as Videos, Tones, Games & Contests. Based on current deployments, OnMobile has over 100 million active subscribers and an addressable base of more than 1.68 billion mobile users across several geographies.
Bharti Airtel Limited, commonly known as Airtel, is an Indian multinational telecommunications services company based in New Delhi. It operates in 18 countries across South Asia and Africa, as well as the Channel Islands. Currently, Airtel provides 5G, 4G and LTE Advanced services all over India. Currently offered services include fixed-line broadband, and voice services depending upon the country of operation. Airtel had also rolled out its Voice over LTE (VoLTE) technology across all Indian telecom circles. It is the second largest mobile network operator in India and the second largest mobile network operator in the world. Airtel was named India's 2nd most valuable brand in the first ever Brandz ranking by Millward Brown and WPP plc.
Aircel Ltd. was an Indian mobile network operator headquartered in Mumbai that offered voice and 2G and 3G data services. Maxis Communications held a 74% stake and Sindya Securities and Investments held the remaining 26%. Aircel was founded by Chinnakannan Sivasankaran and commenced operations in Tamil Nadu in 1999. It was once a market leader in Tamil Nadu and had considerable presence in Odisha, Assam and North-East telecom circles. 2G and 3G Services including voice were shut down in all circles after failure of merger talks with Reliance Communications.
Spice Digital Limited is an Indian telecommunications company headquartered in Noida, India, as a subsidiary of Spice Connect. The company deals in Mobile Value Added Services, along with Telco Solutions, enterprise solutions, financial technology, GST Suvidha Provider (GSP) and digital transformation products and services.
Tata Docomo was an Indian mobile network operator, a wholly owned subsidiary of Tata Teleservices deriving its name from NTT Docomo who invested in the company in 2008. In October 2017, Bharti Airtel announced a merger deal with Tata Teleservices and the acquisition of Tata Docomo. As of 21 July 2019, all Tata Docomo users are merged with Airtel network and provided with all the Airtel services.
In India, the Department of Telecommunications (DoT) conducts auctions of licenses for electromagnetic spectrum. India was among the early adopters of spectrum auctions beginning auctions in 1994.
Vodafone India was the Indian subsidiary of UK-based Vodafone and was a provider of Telecommunications services in India with its operational head office in Mumbai. As of March 2018, Vodafone India had a market share of 21% and with its merger with Idea, the collective Vodafone Idea network has approximately 375 million subscribers and is the Third largest mobile telecommunications network in India.
Mavenir Systems, Inc.Mavenir is an American telecommunications software company, created in 2017 as a result of a three-way merger of existing companies and technologies, that develops and supplies cloud-native software to the communications service provider (CSP) market.
Airtel India commonly known as Airtel, is the second largest provider of mobile telephony and third largest provider of fixed telephony in India, and is also a provider of broadband and subscription television services. The brand is operated by several subsidiaries of Bharti Airtel, with Bharti Hexacom and Bharti Telemedia providing broadband fixed line services and Bharti Infratel providing telecom passive infrastructure service such as telecom equipment and telecom towers. Currently, Airtel provides 5G, 4G and 4G+ services all over India. Currently offered services include fixed-line broadband, and voice services depending upon the country of operation. Airtel had also rolled out its VoLTE technology across all Indian telecom circles.
Jio Platforms is an Indian multinational technology company, headquartered in Mumbai. It is a subsidiary of Reliance Industries. Established in 2019, it acts as a holding company for India's largest mobile network operator Jio and other digital businesses of Reliance.
Route Mobile is an Indian cloud communications platform as a service (CPaaS) company. Started in 2004 and headquartered in Mumbai, the company has presence in more than 15 locations across Asia-Pacific, Middle East, Africa, Europe and North America.
₹3,354 crore (US$420 million) (FY23) [1] 
₹447 crore (US$56 million) (FY23) [1] 
