Kavita tells Santosh that Sandhya should be cautious about her work. Sandhya decides to go on night patrolling. Santosh decides to advice Sandhya. Sandhya decides to surprise Sooraj. Santosh advises Sandhya not to go on night patrolling. Sandhya convinces Santosh for the same. Kavita decides to accomplish her illegal activities on believing that Sandhya will not be patrolling at night. Sandhya finds a stranger, and confronts him. Who is the person? To know more, keep watching Diya Aur Baati Hum... Diya Aur Baati Hum is the story of Sandhya's struggles, who dreams of becoming an IPS officer. She dreams to break the boundaries of her confined existence of middle class values. The story is also about Sooraj, who is a self-made man. Sooraj runs a famous sweet shop near his house.