Continuing the robust growth, the Indian GSM operators added 11.52 million new subscribers in July, taking the total base to 468.11 million.
According to data released by Cellular Operators Association of India (COAI), the subscriber base of four metros -- Delhi, Mumbai, Chennai and Kolkata -- stood at 59.30 million in July compared to 57.53 million in June this year.
The growth rate of new subscribers was highest at 3.06 per cent in the four metros together compared to other circles.
The subscriber base of A category circle (which includes Maharashtra, Gujarat, Andhra Pradesh, Karnataka and Tamilnadu) was 156.9 million in July compared to 152.7 million in June.
Similarly B category circle, which includes Kerala, Punjab, Haryana, UP, Rajasthan, MP and West Bengal, had a subscriber base of 180.4 million in July compared to 175.8 million in June.
Then the C circle, which includes Himachal Pradesh, Bihar, Orissa, Assam, the North-east and J&K, had a subscriber base of 71.41 million in July compared to 70.51 million in June this year.