Yes, Trishna is available to stream for free on several ad-supported platforms, depending on your geographic location. Because the film was handled by independent distributors (like IFC Films in the United States), it frequently rotates through major free digital libraries.
How to check: Simply visit Tubi.com or download the app and search for "Trishna 2011." If it is available, you can watch the entire film for free (legally).
Shot by Marcel Zyskind, the film is a postcard of India that slowly rots. The golden sands of Rajasthan give way to the smoky clubs of Mumbai. The soundtrack blends Indian classical music with electronic beats by Amit Trivedi, creating an uneasy, hypnotic atmosphere.