Land line numbers are 8 digits long, whereas GSM/CDMA Mobile phone the telephone business in the central government owned Mahanagar Telecom Nigam Limited (MTNL).
Land line numbers are 8 digits long, whereas GSM/CDMA cellular operators are 10 digits. The largest and oldest operator in the telephone business in the central government owned Mahanagar Telecom Nigam Limited (MTNL).