HYDERABAD: Ola 's rivalry with Uber is akin to the Vietnam War , the chief executive of the Indian cab aggregator said, referencing the North Vietnam rebels who successfully employed their deep knowledge of the local terrain to oust American-led forces.“(China's Didi Chuxing ) versus Uber was like the World War II, but in India (Ola versus Uber) would be like the Vietnam War. We will be like the local guerrillas and move to the nooks and corners of our country ,“ Bhavish Aggarwal said at an event here on Monday. Uber had to sell its China operations to Didi in August but the end of the bruising two-year battle has allowed the taxi-hailing service to focus on other large emerging markets, including India.In India, Ola and Uber have been facing one problem after the other, including regulatory hurdles and recent driver protests across states. Ola isn't demotivated and is launching innovative programmes to attract customers while also expanding to more regions, including small cities, said Aggarwal, who was participating in a panel discussion on startups and entrepreneurship. "We will innovate a lot in the next 4-5 years," said Aggarwal. "We will be the last company standing in this (sector) and we will be the one who will build a uniquely Indian business model."Ola has about 6,00,000 drivers across more than 100 cities on its platform, and expects to increase its driver-base to three to four million in 5 years, Aggarwal said. "Instead of letting the driver-base grow organically , we are setting up driver-training schools across different districts in the country," he said.Ola has partnered with the Telangana government for a pilot project on running electric taxis. "We believe that electric vehicles can transform transportation completely in India by enabling lower cost of operation and ownership," said Aggarwal, adding that Ola will partner with its largest investor, SoftBank , to provide solar charging to the electric vehicles. The Japanese firm's chief executive, Masayoshi Son , had told ET in an interview in December that he wished to "give away a million electric cars, made in India, for free to drivers of Ola cars".Jaspal Singh, partner at transport consultancy Valoriser Consultants , said electric vehicles could be a game-changer for Ola. "It will help re duce their cost of operation by 2030% and improve their profitability. That can be a real game-changer for them depending on how quickly they take it up and scale," he said.