As long as the sum of the unmelded cards is 10 or less points, a player may knock when they think they have made enough melds to win the round. Players now have to balance the benefits and drawbacks of knocking versus keeping drawing rummy dragon vs tiger 51 bonus& discarding cards, adding another layer of strategy. An opponent may lower their score if a player knocks because they have the chance to lay off any unmelded cards onto the knocking player's melds. Indian Rummy is a popular variation that incorporates special rules that are representative of Indian culture along with aspects of both Classic Rummy and Gin Rummy. Indian Rummy is usually played with two decks of cards and jokers, and it can have two to six players.