Gajab Tamaasa is a romantic comedy drama. The movie revolves around a poor girl named Ganga (Anu Agarwal), who somehow saves herself from getting sexually molested. She meets a man named Sitaram (Rahul Roy), who helps Ganga in many ways. The two start to work as servants in different families and slowly help the families become friends and bridge the gaps in the families. However, in doing so the two fall in love with each other.