Well, you have two teams. Both teams want to win the match. Then bookie from India or Pakistan says to one team "hey, do you want to lose this match? We give you 100,000 dollars to split between all of you". Then half of the team say no, but the other half say yes. And then the bookie bet 500,000 dollars on the match and sometimes they win, sometimes they don't. Its called match fixing :)

Sometimes people ask, which league is the most fixed cricket league? IPL or PSL? We would say BPL:

https://en.wikipedia.org/wiki/Match_fixing_in_the_Bangladesh_Premier_League

Why?!

You can bet big money on BPL in India, and at the same time players don't earn much. Therefore it's very easy to get them to say yes. An other interesting league to watch for is CPL:

https://cricxtasy.com/cpl-2021/cpl-fixing-claims-strange-betting-odds-change/cid7009105.htm