A popular card game with unclear origins, Holy Rummy is also known as "Rummy 500.". The origin of this game is thought to have come from a series of card games that firteen patti gost appeared in the US in the early 1900s. Most likely, the game is an adaptation of the centuries-old game of traditional Rummy. With its growing popularity, Holy Rummy has developed into a popular past time for friends and families. A group of friends searching for a novel & thrilling card game are credited with creating Holy Rummy.