For a fleeting moment at a county fair, Nawab had a glimpse of fair, moon-like face as it peeped from within the confines of a black 'burqa'. He tried, without avail to find the whereabouts of the girl. The next day a torn corner of her veil came into his possession; and he handed it over to a trusted women employee with instructions to find the owner of the veil. Neither Nawab nor his employee was aware that the girl, according to a Muslim custom (which purports to cement friendships) had exchanged veils with another girl. Nawab's woman employee found that her search for the torn veil led her beloved was Bano. Forthwith, Nawab began to make plans for marrying Bano. Nawab's ailing mother was in no condition to undertake the Haj pilgrimage. She decided to send, as her proxy, a Maulvi Saheb. But the Maulvi wouldn't even think of going, leaving his youthful daughter without chaperon. He said he would go on one condition: that Nawab marry his daughter. Nawab, however, having already lost his heart, prevailed on Aslam, a close friend of his, to marry the Maulvi's daughter. While he himself, when he finally got to Bano, found that Bano was not his beloved! And then, once again, at a fair, Nawab saw the girl in the black 'burqa'. She was accompanied by a girl in a white burqa. Nawab, Aslam, and their friend Shaida, all three of them followed the black burqa to the girl's home. But they did not know that the girls, while they were at the mazar, had exchanged their veils. The 'home' of the 'girl' turned out to be the residence of Aslam's uncle. Aslam unhesitantly promised to arrange Nawab's marriage with his (Aslam's) cousin, Naseema. One day, per chances, Nawab arrived at Aslam's house, when his eye's lighted on Aslam's wife, Jamila, he had a revelation. Aslam, too, learned for the first time that the beloved Nawab had sought fruitlessly was Jamila! Aslam was very much beholden Nawab. He, therefore decided to ruin his own home, in order to bring out Nawab's happiness. He started visiting the establishments of tawaaifs' (singing girl): so that he should gain notoriety, Jamila's folks should ask for a divorce, and then Jamila should be free to marry Nawab. Nawab and Naseema were scheduled to wed soon. There was a conflict in Aslam's mind. He could not bear to see his closest friend unhappy. What should he do? The conflict is resolved in the beautiful denouement of Guru Dutt's Chaudhvin Ka Chand.