To appreciate "Nazar," you must understand its director. Mani Kaul was a pioneer of Indian art cinema (often called "New Indian Cinema" or "Parallel Cinema"). A student of the legendary Ritwik Ghatak, Kaul rejected the melodrama of commercial Hindi films.
Why should a modern audience, used to the pace of OTT thrillers, watch a slow 1990 art film? Because "Nazar" predicted the dilemmas of the 21st century.