BYJU'S has become India's most valuable startup and 11th most valuable in the world after raising $350 million at $16.5 billion valuation. It's followed by Paytm's parent company One97 Communications at $16 billion and OYO Rooms at $9 billion, according to CB Insights. Ola Cabs comes in next at $6.3 billion, followed by Zomato, Swiggy and Dream11.