NEW DELHI (Reuters) - India is examining the use of private vehicles as shared taxis in an effort to reduce car ownership and curb growing traffic congestion in major cities, sources familiar with the matter told Reuters.

FILE PHOTO: An employee walks inside the office of ride-hailing service Uber in Gurugram, previously known as Gurgaon, on the outskirts of New Delhi, India April 19, 2016. REUTERS/Anindito Mukherjee/File Photo

India’s federal think-tank, which is chaired by Prime Minister Narendra Modi, has partnered with companies including ride-sharing firm Uber Technologies [UBER.UL] to assess the economic and environmental impact of using private cars as taxis, a government official involved in the process said.

Increasing the availability of cars that can be used as cabs would be welcome news for Uber and its SoftBank 9984.T backed local rival Ola, although it could heighten tensions with taxi operators that typically pay higher fees for commercial licences while facing more rigorous vehicle testing.

India’s government wants to reduce private car ownership, the official said, adding the three-month study will look at the safety, regulatory, tax and insurance implications.

While the study is in its early days, the broad idea is to set up a clear and reasonable regulatory framework for ride-sharing so it allows companies to operate in India without ambiguity, another source involved in the process said.

Although Uber is allowed to use private cars for ride sharing in countries such as Australia and Singapore, their use has faced opposition from taxi operators in parts of North America.

An Uber spokesman said sharing private vehicles can help cut congestion and ensure more efficient use of cars.

“We are engaging with a range of stakeholders in India about the best way to realize this vision,” he said.

CAR SALES IMPACT

But such a move could dent car sales in India where the ownership ratio is already low compared with other countries. There are fewer than 20 cars for every 1,000 people in India.

Maruti Suzuki MRTI.NS, Hyundai Motor 005380.KS and Tata Motors TAMO.NS are among the top-selling carmakers in the country, which is forecast to be the world's third-largest car market by 2020.

Uber and Ola have built their taxi “fleets” in India by offering incentives such as free smartphones and cash bonuses to drivers, but both are now cutting back on these in an attempt to be profitable.

Allowing the use of private cars as taxis would improve the supply of vehicles at a low cost, say analysts.

“If most of these cars are affiliated with Ola and Uber then it’s a win for them,” Neil Shah, research director at consultant Counterpoint Research, said.

The proposal, however, could antagonize current drivers, who have paid hefty fees to get a commercial taxi license.

Concerns around the safety of passengers would also need to be addressed, said Shah, adding that any new law must ensure private car drivers go through the same background and safety checks.