India
The Airtel subscriber base according to Cellular Operators Association of India
(COAI) as of April 2012 was:
Metros
Delhi – 8,818,153
Mumbai – 3,738,188
Kolkata – 3,882,463
Chennai – 3,388,379
"A" Circle
Andhra Pradesh – 18,539,788
Gujarat – 7,062,371
Karnataka – 15,468,507
Maharashtra – 9,968,936
Tamil Nadu – 10,094,293
"B" Circle
Haryana – 2,472,639
Kerala – 3,574,844
Madhya Pradesh – 9,728,966
Punjab – 6,973,022
Rajasthan – 14,546,216
Uttar Pradesh (East) – 14,886,051
Uttar Pradesh (West) – 6,666,880
West Bengal – 9,202,693
"C" Circle
Assam – 3,759,878
Bihar – 17,732,686
Himachal Pradesh – 1,861,569
Jammu and Kashmir – 2,112,537
North Eastern States – 2,351,038
Orissa – 6,460,022