According to data released by the Cellular Operators Association of India (COAI), GSM operators added 7.12 million new subscribers in October 2011, compared to 6.52 million additions in the previous month.

With this, the GSM subscriber base in the country stood at 625.41 million on October 31, 2011.

In October, Bharti Airtel added 0.94 million users, taking its total subscriber base to 173.73 million. The company had a 27.78 per cent market share at the end of October.

Vodafone Essar, with a 23.33 per cent market share net 0.92 million new subscribers during the month. Its subscriber base reached 145.91 million in October.

Idea Cellular witnessed the highest number of additions during the month, with 1.63 million new users taking its total subscriber base to 101.81 million, while Aircel added 0.48 million customers to take its subscriber base to 60.28 million.

Bharat Sanchar Nigam Limited (BSNL) and Mahanagar Telephone Nigam Limited (MTNL) added 0.51 million and 34,919 new users, respectively, taking their subscriber base to 91.58 million and 5.36 million.

Sistema Shyam TeleServices limited (SSTL) added 7.95 million customers, taking its total customer base to 14.06 million.