While its depth and complexity appeal to seasoned players, Gin Rummy's rules are simple enough for beginners to understand. A Modified Version of Rummy: Indian Rummy. A noteworthy variant of rummyteen patti 777 that has become extremely popular in South Asia is Indian rummy. Up to six players can play in this version, which usually uses two decks of cards. Players must only declare their hands after completing their melds in Indian Rummy, which places a high value on creating legitimate sets and sequences. Wild cards are frequently used in the game, which ups the excitement and strategy level.