While an action movie, the soundtrack is memorable.
If Pather Panchali started the art film movement in India, Bhuvan Shome launched the Indian New Wave (Parallel Cinema). It tells the story of a rigid, bureaucratic railway official (Uttar Kumar Choudhury) who is transformed by a simple village woman (Robi Ghosh in a female role, though the voice was dubbed by a woman; later in Mrigayaa, he used non-actors).
Index Term: Verbal Takedown
Surprisingly, the official Ritwik Ghatak Memorial Trust channel has indexed several short speeches and rare footage. Use the search string: site:youtube.com "Ritwik Ghatak" film.