Domestic long distance mobile call tariffs dipped to a new low on Monday, with cellular services market leader Bharti Airtel [Get Quote] reducing STD rates to Rs 1.50 a minute from Rs 2.65.

Bharti Airtel, 30 per cent owned by Singapore's SingTel, also announced a drastic cut in roaming rates under which incoming roaming calls will be charged at Re 1 a minute compared with the existing Rs 1.75.

While roaming, the customer can make an outgoing local call at Re 1 a minute and an STD call at Rs 1.50 a minute, Bharti Airtel President Manoj Kohli told reporters in New Delhi.

The initiative will benefit rural customers.