For accurate and deep-dive searches, the following platforms act as the industry's primary digital indices: IMDb Bollywood Section
One major challenge is the Many films today are pan-Indian, released in multiple languages simultaneously (e.g., KGF , RRR ). Should they be indexed under Bollywood, Tollywood (Telugu), or Kollywood (Tamil)? A strict index must decide its boundary: pure Hindi-language productions vs. Hindi-dubbed versions of other regional hits. index of movie bollywood