Billionaires Nikhil Kamath and Ranjan Pai are interested in buying Royal Challengers Bengaluru (RCB), possibly in a consortium with Adar Poonawalla, Times of India reported. This comes as RCB's current owner, Diageo, has initiated its sale. RCB's brand value is reportedly over $269 million, while Pai's and Kamath's current net worths are $2.8 billion and $2.5 billion, respectively.