Alternatively, perhaps I'm overcomplicating. Maybe the user is referring to a non-movie song, like a play or a live performance. The phrase "Woh Mangal Raat Suhani Thi" is part of a longer poem or lyric often recited in Hindi poetry circles or used in weddings. The full lyric might go something like:
"Woh Mangal Raat Suhani Thi" represents a specific era of storytelling in Indian music—one that was uninhibited and deeply rooted in the local vernacular. Whether it is a piece of folk history or a forgotten cinematic gem, its "exclusive" status today only adds to the mystique for collectors of rare Indian melodies. Alternatively, perhaps I'm overcomplicating