dying mother's wish. In the downpour on the way, the cabbie attempts to rob her but Kamal, a forest ranger, rescues her and gives her shelter until the sky is clear the next day. She learns that Kamal is the very man with whom her marriage was arranged. Madhu leaves Kamal's home in shame and reaches Poonam's in-laws. Her father-in-law, Dinanath and mother-in-law accept her and let her stay there. Kamal keeps visiting the house as he was the son of Dinanath's best friend. Soon, he realises that he is in love with "Poonam". Madhu's ill fate brings Kailash to Dinanath's house. He is after their money and is very close to revealing Madhu's identity. To be successful, he impresses all the members of the house, but Poonam takes a resentment to him. Dinanath soon realises Poonam's true identity and asks for the truth. When he realises what the matter really is, he accepts Madhavi and makes her the guardian of the Dinanath property which will be inherited by Munna. That night, Dinanath is poisoned by Kailash. Mrs. Dinanath accuses Poonam for what has happened and she is imprisoned. Now Shabnam enters the life of the Dinanaths claiming that she is the real Poonam. Mrs. Dinanath, in rage, sends her away and is ready for no story. Kamal takes a dislike towards Madhu, learning the truth. However, he eventually realises the truth and gets Shabnam and Kailash arrested for their evil intentions and Madhavi is freed. When Kamal searches for Madhu, he realises that she has left without any notice, but a letter for Kamal, stating that she is going out of his life and so, he should not try to find her out. Kamal starts searching for her and finds her trying to jump from a cliff and stops her by singing a song. They hug. Cast Asha Parekh as Madhavi "Madhu" / Fake Poonam Rajesh Khanna as Kamal Sinha Prem Chopra as Kailash Bindu as Shabnam "Shaboo" Nazir Hussain as Diwan Dinanath Madan Puri as Kamal's Father Kumari Naaz as Real Poonam (uncredited) Sulochana Latkar as Mrs. Dinanath Chandrashekhar as Police Inspector Tiwari Satyen Kappu as Dr. Kashinath Daisy Irani as Ramaya Mehmood Jr. as Sheetu, Ramaya's brother Production Kati Patang was adapted from the novel of the same name by Gulshan Nanda. The film's story, also written by Nanda, was also based on the novel I Married