Tata DOCOMO, the GSM brand of Tata Teleservices Limited (TTSL), has extended its per-second billing plan to roaming calls.

Tata DOCOMO, the GSM brand of Tata Teleservices Limited (TTSL), has extended its per-second billing plan to roaming calls.

Following this, Bharti Airtel too has launched a new billing scheme, lowering its roaming rates by about 60 per cent.

Vodafone Essar too has announced a new tariff plan reducing its national roaming rates for prepaid and post-paid users.