The phrase is likely a search string used to find open directories or "Index of/" pages on servers that host movie files. While no single official website bears this exact name, several platforms serve as authoritative databases or legal streaming "indexes" for classic Hindi cinema. Authoritative Databases (Indexes) For comprehensive information on cast, crew, and history: IMDb: Old Hindi Films : A highly-rated community list featuring classics like (1975), (1971), and (1957). Wikipedia: Hindi Cinema
This is a download-only archive. And unless .srt files sit next to the videos, you won’t get English subtitles—problematic for older Hindi/Urdu dialogues without modern dubbing. index of old bollywood movies work
Old Bollywood operated on the "Playback" system, creating a unique duality in performance. The "work" of the actor was visual expression (lip-syncing), while the "work" of the singer was emotional conveyance. The phrase is likely a search string used
Before the music, there was the light. The index begins with . Dadasaheb Phalke used a hand-cranked camera. Wikipedia: Hindi Cinema This is a download-only archive