Zamindar is a 1942 blockbuster of Pancholi films that starred Shanta Apte and S. D. Narang (also hero of Khazanchi – 1941) with M. Esmail, Manorama and Ghulam Mohammed.
Here is a plot summary from www.upperstall.com
The village zamindar, Ganesh (Ghulam Mohammed), sacks his faithful manager Raghubir (M Ismail). Raghubir’s daughter, Rupa (Shanta Apte), loves the zamindar’s son, Karan (SD Narang). When Karan sides with Raghubir and Rupa, he is disinherited. The villagers fed up with Ganesh decide to kill him. Ganesh is found dead having been shot with Karan’s gun. Karan is arrested. Rupa then finds a clue identifying the real killer…