Accepted answer
Short answer: Chaal means continuing in the round by putting in the required amount.
How I check this as a player
I check whether a player is blind or seen before judging the chaal amount.
What it changes at the table
Chaal keeps you in the hand; pack ends your part of the round.
Safety note
This site is an independent 3Patti guide. I use these answers for learning rules, comparing app claims and spotting risky wording; we do not operate real-money games, process payments, or guarantee APK safety, winnings, withdrawals or bonuses.