Vodafone, India's third-largest mobile operator, has slashed the tariffs for STD to Rs 1.30 a minute across the country, while roaming charges have been dropped to Re 1 for all incoming and local outgoing calls.

While on roaming, a subscriber can make an outgoing call (STD) at the rate of Rs 1.50 per minute.

Last week, Bharti Airtel Ltd had reduced its STD call rates by around 43% to Rs 1.50 per minute from Rs 2.65 per minute and the roaming charges also by 43 % to Re 1 per minute from Rs 1.75 per minute across all tariff plans.

The new tariffs will come in to effect immediately.