Nupur fled from her Delhi house because of her marriage had been fixed with a very ugly looking man. She came to Calcutta to her college friend, but that place was not safe for her. As a result, she took shelter in Anjan Mukherjee’s house. Anjan a bachelor music director and singer, originally from Lucknow initially became very irritated and disturbed, but later he understood the problem of Nupur and helped her. In such a situation, the great detective Bhanu and Jahar entered. They were following Nupur and tried lever best to solve the case. Dr. Digambar Chatterjee had declared prize money of ten thousand rupees for her lost child. After a funny incident at Lalmati, Anjan got married Nupur and Bhanu and Jahar able to catch Nupur Mukherjee not Nupur Chatterjee.