7s Rummy falls under the legal boundaries set by the Indian jurisdiction. As defined under the boundaries of Indian law, “Game of Chance” where the winning of a user is highly dependent on his luck or chance than his skills or knowledge of the game, is considered as betting or gambling and illegal.

On the other hand, “Game of Skill” wherein the skills or knowledge of a user about a particular game or sport plays a dominating role in the winning of the user, is considered to be legal as per the Indian jurisdiction.

Indian Law on Legality of Rummy:

In accordance with a 1968 Supreme Court ruling rummy is considered to be a game of skill as:

"Rummy requires certain amount of skill because the fall of the cards has to be memorized and the building up of Rummy requires considerable skill in holding and discarding cards. We cannot, therefore, say that the game of Rummy is a game of entire chance. It is mainly and preponderantly a game of skill. The chance in Rummy is of the same character as the chance in a deal at a game of bridge."

Further, going by the 1996 ruling of Supreme Court:

"A game of skill, on the other hand - although the element of chance necessarily cannot be entirely eliminated --is one in which success depends principally upon the superior knowledge, training, attention, experience and adroitness of the player. Golf, chess and even Rummy are considered to be games of skill. The Courts have reasoned that there are few games, if any, which consist purely of chance or skill, and as such a game of chance is one in which the element of chance predominates over the element of skill, and a game of skill is one in which the element of skill predominates over the element of chance. It is the dominant element --"skill" or "chance" -- which determines the character of the game."