There were 72.68 crores GSM users at the end of April, the COAI said.
Bharti Airtel, the country's largest operator, added the most users, with 16.5 lakh users joining its network. Its total number of subscribers stood at 20.82 crores, with a market share of 28.41 percent, at the end of May.
(Also see: GSM mobile subscribers rise 1.16 percent to 721.93 million in March: COAI)
Uninor, controlled by Norwegian firm Telenor, added 13 lakh subscribers to take its overall base to 3.78 crores. Telenor plans to take complete ownership of Uninor by buying Lakshdeep Investments' 26 percent stake for Rs. 780 crores.
Idea Cellular got 11.6 lakh new users to take its total to 13.77 crores. The country's third-largest operator has a market share of 18.79 percent.
Vodafone India, the second-biggest player in the country, added 9.82 lakh subscribers for a total of 16.82 crores and a market share of 22.95 percent. Aircel added 9.42 lakh subscribers to take its total user base to 7.2 crores.
Videocon added 1.27 lakh users and state-run MTNL added 11,702 users. The overall user base of Videocon and MTNL stood at 54.1 lakh and 32.6 lakh, respectively.
GSM refers to Global System for Mobile Communications, a digital cellular technology used for transmitting mobile voice and data services.
Get your daily dose of tech news, reviews, and insights, in under 80 characters on Gadgets 360 Turbo. Connect with fellow tech lovers on our Forum. Follow us on X, Facebook, WhatsApp, Threads and Google News for instant updates. Catch all the action on our YouTube channel.
Supernova’s First Moments Show Olive-Shaped Blast in Groundbreaking Observations
Intense Solar Storm With Huge CMEs Forced Astronauts to Take Shelter on the ISS
Nearby Super-Earth GJ 251 c Could Help Learn About Worlds That Once Supported Life, Astronomers Say
James Webb Telescope May Have Spotted First Generation of Stars in the Universe