Thirteen cards, jokers, and two runs you must have before anything else counts.
The thirteen-card rummy of India, and one of the most-played card games in the country. The rule that defines it is the pure sequence.
Two 52-card decks with jokers, for two to six players. Thirteen cards each. One card is turned up at the start and becomes the wild joker — every card of that rank, in all suits, is wild for the hand, alongside the printed jokers.
You must have at least two sequences, and at least one of them must be pure — a run of three or more in the same suit containing no joker at all.
Without a pure sequence, nothing else in your hand counts for anything. This is the whole game.
Pure sequence: consecutive cards in one suit, no joker. Impure sequence: consecutive cards in one suit using a joker to fill a gap. Set: three or four cards of the same rank in different suits, jokers allowed.
Draw from the closed deck or take the open discard, then discard one card. You always hold thirteen cards.
When your thirteen cards form valid combinations with at least two sequences including one pure one, you place your final card face down and declare.
A valid declaration scores zero. Everyone else scores the value of the cards not part of a valid meld: court cards and aces 10 each, number cards face value, up to a maximum of 80.
A player who declares wrongly takes an 80-point penalty, which is why nobody declares in a hurry.