Story: Raj Khanna is a wealthy businessman and lives with his wife, Archana; step-sister, Devyani, her spouse and her son, Teddy, in a mansion. Raj and Archana's lives are marred by marital discord, so much so that they decide to separate. Shortly before separating, Archana gives birth to twins - but one of which is taken away from her - and handed over to Raj, who subsequently grows up to be a ... ...detailed story of Kuch Khatti Kuch Meethi