How do you play 13 card Indian rummy?

13 Card Indian Rummy, also known as Indian Rummy, is a popular card game played with a standard deck of 52 cards. The objective of the game is to form sets (three or four cards of the same rank) and sequences (three or more consecutive cards of the same suit) to declare your hand.

Here's a step-by-step guide on how to play 13 Card Indian Rummy:

Players: 

13 Card Indian Rummy is typically played with 2 to 6 players.

Setup:

* Use a standard 52-card deck for 2 to 4 players. For 5 or more players, use two decks shuffled together.
* Each player is dealt 13 cards at the beginning of the game.
* The remaining cards form the draw pile, and one card is placed face-up to create the discard pile.

Objective: 

The main objective is to arrange your 13 cards into valid sets and sequences and declare your hand.

Gameplay:

* On your turn, you start by drawing a card. You can either draw the top card from the draw pile or the top card from the discard pile.
* After drawing a card, you must discard one card to the discard pile.
* Your goal is to form valid combinations with your 13 cards. These combinations can be either sets or sequences. A valid set consists of three or four cards of the same rank but different suits. A valid sequence consists of three or more consecutive cards of the same suit.
* The Joker cards can be used as substitutes for any missing card to form a valid combination.
* Once you have formed all your cards into valid sets and sequences, you can declare your hand.

Declaring: 

To declare, you must have at least two sequences, one of which must be a pure sequence (a sequence without a Joker). The remaining sequences or sets can include Jokers.

Scoring: 

The points assigned to each card are as follows:

* Number cards (2-10): Face value
* Face cards (Jack, Queen, King, and Ace): 10 points
* Joker cards: 0 points

The winner earns zero points, and other players earn points based on the value of the cards they couldn't form into valid combinations.

Winning: 

The game continues for a predetermined number of rounds. The player with the lowest cumulative score at the end of the rounds wins.

Optional Rules:

* Some variations allow the use of two additional cards as wild cards, which can represent any card.
* In some versions, players can drop their hand if they feel they cannot form valid combinations, but they receive penalty points for doing so.

It's important to note that there are various regional variations of Indian Rummy, and the rules may differ slightly depending on where you're playing. Be sure to clarify the rules with your fellow players before starting a game.