If your "index" search is for where to actually watch these films, the following platforms hold the largest licensed libraries:
Only for movies released before 1950 in India (as per copyright expiration rules). You can find silent era Bollywood films legally on archives like the Internet Archive ( archive.org ). Search for "Bollywood" on Archive.org—that is a real , legal index of digital files. index of movies bollywood
Most directories containing copyrighted movies without permission are illegal. Downloading or distributing such content violates the Indian Copyright Act, 1957 (amended 2012). Penalties can include fines up to ₹2 lakh or imprisonment for repeat offenses. If your "index" search is for where to