Dillagi is a 1978 romantic comedy directed by Basu Chatterjee, based on the Bengali novella "Kalidas O Chemistry" (কালিদাস ও কেমিস্ট্রি) by Bimal Kar. It stars Dharmendra playing Swarn Kamal - a newly appointed Sanskrit professor in a girls' college. Hema Malini is a strict Chemistry lecturer (Phoolrenu) and warden of the same college.