Koi Deepak ho is a story of a girl Sania, who idealizes her college principal. But with time she realizes that madam Fazeela is not what she pretends to be. She doesn't practice what she preaches. Sania becomes madam Fazeela's daughter in law and upon finding the reality wants to separate from her husband. But later she changes her mind and forgives madam Fazeela. She cannot bear to see her ideal suffer and exhibits kind heartedness for the sake of her family.