State-owned telecom Mahanagar Telecom Nigam Limited (MTNL) is the latest entrant to join the pay per second plan. The company is offering local and STD calls on other networks at 1 paise per second.

Commenting on the implications of this, RSP Sinha Chairman and Managing Director of MTNL said the average revenue per users (ARPUs) would get impacted due to the reduction in tariffs. The company’s current ARPU stands at around Rs 150.