Kuch Kuch Hota Hai , also known as KKHH, is a Hindi romantic comedy drama film, released in India and the United Kingdom on 16 October 1998. It was written and directed by Karan Johar, and starred the popular on-screen pair of Shahrukh Khan and Kajol in their fourth film together. Rani Mukerji featured in a supporting role, while Salman Khan had an extended guest appearance. Filmed in India, Mauritius, and Scotland, this was Karan Johar's directorial debut. One of his goals for the film was to set a new level for style in Hindi cinema. The plot combines two love triangles set years apart. The first half covers friends on a college campus, while the second tells the story of a widower's young daughter who tries to reunite her dad with his old friend. The story borrows loosely from the Hollywood film 'Sleepless in Seattle'. The film was extremely successful in India and abroad, becoming the highest grossing Indian film of the year, and the first Bollywood film to enter the UK cinema top ten. The soundtrack also became the biggest seller of the year.Wikipedia