Mumbai: Singapore government's investment fund Temasek Holdings and private equity major Warburg Pincus are leading a $500 million funding round in Ola ahead of its planned IPO, the mobility firm said on Friday.The investment comes at a time when Ola's ride-hailing business has been majorly hit due the ongoing Covid-19 pandemic.“Over the last 12 months we’ve made our ride hailing business more robust, resilient and efficient," Ola founder Bhavish Aggarwal said in a statement.