Mood: The mood of the video appears to be nostalgic and romantic, with a hint of melancholy. The title 'Milan Hoga Kab Jaane' translates to 'When Will We Meet', which suggests a longing for a loved one. The theme seems to be related to love, separation, and the passage of time.

Environment: The setting of the video appears to be a traditional Indian household, possibly from the 1940s, given the title 'Bengal 1947'. The woman is sitting in a room with a table, chair, and other antique items, which suggests a vintage setting. The overall atmosphere seems to be calm and intimate.