Once this has been said that in the field of cricket, Earning Money is the synonym of IPL, everywhere you look, you will get to see advertisement, sponcers and fans. IPL is not just premiar league for Indias, it's like festival season where fans mostly from where match is played come to support their team.
It's not false saying that IPL is most watched broadcasting events of all time. Top 10 videos streaming seen by the people is headed by 7 IPL highlights videos. That's showing the fanbase of cricket in India.
If the scenario is so, then necessarily, utilisation of this fanbase for advertising of anything is upto next level. In India, the sponcers and broadcasting owners pay unexpected money in each time when auction for title and broadcasting rights are sold.
How BCCI and Broadcaster earn money!
For showing matches of IPL on ott or Television, Broadcasters have to buy the rights from BCCI for which BCCI charges very high ammount. It's the way in BCCI earns.
How Sponcer having rights earns!
When we are to see matches, we take subscription or recharge the set up box by paying money to service provider. The ammount we pay for watching and the TRP are two ways by which sponcers make money. That's their earnings.