Mood: The mood of the video appears to be romantic and joyful, with the couple exuding happiness and affection. The theme seems to be love and nostalgia, as hinted by the title 'Yaad Nahin Bhool Gaya', which translates to ' Memories Not Forgotten'. The overall emotion is lighthearted and sentimental.

Environment: The setting of the video appears to be a picturesque rural or mountainous region, with lush green hills and valleys in the background. The presence of terraced fields and scattered trees suggests a serene and natural environment. The couple's attire and the traditional Indian clothing worn by the woman also suggest a cultural or traditional setting.