The idea of boot & chaal is one of the central themes of 789 Teen Patti. While calling or placing a bet during a game is referred to as chaal, the boot is a mandatory wasatta king coverger that all players must make prior to the cards being dealt. In addition, players have the option to fold if they feel their hand is not strong enough to compete, or they can choose to raise the stakes by increasing the amount bet. Gaining the Advantage in Sports. The remaining player wins the pot when all other players have folded.