• Dharmesh Shah • Sanjeev Shukla • Uday Raj • Achintya Ghosh • Vikas Sharma • Sandeep Bhatt Camera setup Running time 20 minutes Release Original network Picture format Original release 29 October 2001 ( 2001-10-29) – 28 February 2008 ( 2008-02-28) Chronology Related shows External links Kasautii Zindagii Kay (English: The trials of life) also known as KZK is an created by 's for the channel. The show ran for seven long years and starred, (who was later replaced by ), and in lead roles; and as the main antagonists. The show explores the story of Anurag and Prerna who fall for each other but they never unite because of Komolika who plots against them and the conspiracies made against them. It describes Anurag and Prerna—lovers who were separated throughout their lives but achieved union in death. Kasautii Zindagii Kay became the third longest running Indian series after and — all three were also produced. The show recorded one of the highest TRPs and introduced many popular faces like,,,.