Kuch Kuch Hota Hai is a story of three young and vivacious college friends who are brought together by friendship but separated by love.
Rahul's happily married life is destroyed by the death of his wife Tina who leaves behind the new born Anjali. Growing up to be a happy go lucky girl, Anjali's longing for a mother is fulfilled with the letters that Tina left behind as her birthday gifts. On her eighth birthday's letter, she discovers her father's college life and his close friendship with his batch-mate, the tomboy Anjali. In the letter, Tina requests her daughter to bring together the two long lost friends and entrusts her with the responsibility of fulfilling the unrequited love of Anjali for Rahul.