The latest investment values the company at about $16.5 billion. Paytm is valued at $16 billion. : Byju’s has dethroned Paytm to become the country’s most valuable start-up after it secured close to $350 million in fresh funding from a clutch of investors including UBS Group, Blackstone, Abu Dhabi state fund ADQ, Phoenix Rising and Zoom founder & CEO Eric Yuan, the company’s filings with the RoC showed. The funding is understood to be an extension of the Bengaluru-based ed-tech firm’s broader over $1 billion financial round it has been raising in tranches.