3-2-5, also called Teen Do Paanch, is a three-player trick-taking card game popular in India. Each player has a target number of tricks, and you score by beating it. This page is the short version. The full rules guide has a worked scoring example.
30 cards are in play: A, K, Q, J, 10, 9, 8 of every suit, plus the 7 of spades and the 7 of hearts. Each of the three players is dealt 5 cards first, the trump picker chooses trump from those, then 5 more cards are dealt. Everyone holds 10 cards.
They are the tricks each player must win in a round: the player left of the dealer (who picks trump) needs 5, the next player needs 3, and the dealer needs 2.
Follow the lead suit if you can. The highest trump wins the trick, otherwise the highest card of the lead suit wins.
Players who beat their quota can pull a facedown card from an opponent and give one of their own back. This is what makes Teen Do Paanch different from other trick games.
You score tricks won minus your quota. Winning 7 tricks on a quota of 5 scores +2. The first player to reach 5 points wins the match.
The 3-2-5 Card Game app for Android is free, plays offline against AI bots and has online rooms for friends. The in-app guide teaches the rules as you play.