“How do you create mobility options for the next 900 million?” asked Anand Shah, a senior vice president at Ola who oversees its electric mobility efforts. “You don’t have to look far — you can see what India is choosing.”

In addition to supporting Vogo, Ola offers motorbike taxis in some Indian cities and is promoting wider adoption of electric auto-rickshaws.

Uber has made no moves toward motorbike sharing. But it has recognized the potential of cheap vehicles that customers drive themselves. Last year, it bought Jump, which rents out electric bicycles and motorized stand-up scooters in two dozen major cities in the United States and Europe. In February, Uber said more customers in Sacramento, California’s capital, had rented its Jump vehicles than had summoned traditional cars.

Uber declined to comment, citing the quiet period ahead of its initial public offering.

Scooters, bicycles and mopeds have the potential to steal some market share from the Ola and Uber car services, said Chandrasekar Iyer, who is studying disruption in the auto industry as a fellow at the Clayton Christensen Institute in the San Francisco area. But Mr. Iyer, a consultant at Tata Consultancy Services, predicted that the ride-hailing giants would not stand idle.

Vivek Durai, a co-founder of Paper.vc, which closely monitors privately held companies in India, said the big money was beginning to flood in.

“There is a deep hunger to solve this,” he said. “People need flexible options for transport.”