New Delhi: A decade after it introduced fixed wireless service to its population, the Indian telecom regulator has given a thumbs-up to a similar plan in some of its key cities.

The Telecom Regulatory Authority of India (TRAI) on Wednesday approved the rollout of two-way voice and data services in all of its 16 central cities.

It also said it would explore “other options for making such services available” in the near future.

Telecom operators will have the option of charging for voice and text calls and texts, and for data services, up to 100 per cent of the cost of a phone call.

The companies will also have the ability to use data caps of up to 20 megabytes per day and unlimited data for unlimited minutes, up from 10.

For data plans, operators will be able to charge a monthly cap of Rs 4,999 for voice calls, Rs 6,999 per month for text calls, and Rs 10,999.

“The introduction of this type of service will be a welcome addition to India’s telecom market, which has been severely impacted by the ongoing telecom sector slowdown and resultant cost of data usage,” TRAI chairman Anil Ambani said in a statement.

The regulator had earlier approved the introduction of the plans in a few major cities in the north-east, including Mumbai, Bengaluru, Chennai and Kolkata.

The plans were announced in February.

T-Mobile India, the nation’s largest prepaid carrier, had also said earlier that it would introduce fixed wireless services in Delhi.

The announcement came as Prime Minister Narendra Modi launched the Bharatiya Janata Party (BJP) in Delhi, his first major campaign since taking office in May.

Modi’s Bharatiyathin Party, which will be headed by the Congress party leader Rahul Gandhi, has been strongly criticised for its policies, including its support for an independent India, its anti-corruption drive, and its support of the National Democratic Alliance (NDA) government led by Narendra Modi.