Waheeda Rehman was part of K3G

Waheeda Rehman, a timeless icon of Hindi cinema, was initially cast in Karan Johar's Kabhi Khushi Kabhie Gham... but had to withdraw after shooting a few portions, including the title song, due to her husband's demise. Karan Johar expressed his admiration for the legendary actress, stating he treasures the moments they shared. Achala Sachdev replaced Waheeda Rehman in the film, known for its stellar cast, including Amitabh Bachchan, Jaya Bachchan, Shah Rukh Khan, Kajol, Hrithik Roshan, and Kareena Kapoor Khan.