Miles away from the fancy parts of Gurgaon, where a cohort of Uber and Ola cars race all day to dot the surrounding, hundreds of people are working on a different solution to contribute to India’s push for improved mobility.

When Uber entered India six years ago, and its local rival Ola began to expand in the nation, many thought the two cab services will be able to meet the needs of most Indians. To be sure, the heavily discounted cab rides in the early days meant that the two companies were able to quickly scale their businesses to dozens of cities and were clocking about three million rides a day.

But in the years since, it has become clear that Ola and Uber alone can’t serve the masses — a significant portion of which lacks the means to book a cab ride — or magically circumvent through India’s alarmingly congested roads. This has resulted in the emergence of a growing number of electric bike makers such as Yulu — which partnered with Uber last month, Vogo — which is backed by Ola,  Bounce, and Ather Energy that are both showing promising growth and attracting big bucks from investors.

For four years, another startup has been quietly working on expanding its platform. But unlike the bike startups and cab aggressors, it is betting on buses. Shuttl operates over 1,300 buses in more than 300 routes in five cities of India. The platform serves more than 65,000 customers each day.

Shuttl, too, hasn’t had much difficulty in attracting capital. It has raised about $48.5 million to date. TechCrunch recently learned that the startup was in talks with investors to raise an additional $50 million. Amit Singh, cofounder and CEO of Shuttl, declined to comment on the upcoming funding round. But he sat with us to explain his business and the challenges it comes with.