"Woh Mangal Raat Suhani Thi, Woh Piya Se Chudne Wali Thi..."
Need to make sure to avoid any false claims but present possible scenarios. For example, if the song is from a play, mention that and perhaps name the play if I can recall. If not, present it as part of the oral tradition. "Woh Mangal Raat Suhani Thi, Woh Piya Se Chudne Wali Thi
Also, since the user wants an exclusive post, maybe include a hypothetical interview excerpt, but that could be fictional. Alternatively, focus on how the song is used in various events and how it's adapted in different eras. Also, since the user wants an exclusive post,
Wait, actually, I think it's from a play or a song that's been popular for a while, maybe "Rasik Kalakar" or another traditional play. Let me verify. A quick search in my mind: "Woh Mangal Raat Suhani Thi" is from the play "Rasik Kalakar," which is a classical play by Vishnushankar Pandit. It's a love story and this song is part of the play's repertoire. However, in Hindi cinema, the song might have been used in a movie adaptation. Alternatively, maybe it's from a film like "Kabhi Kabhie" (1973) or another older film. Let me verify