Mood: The mood of the video appears to be nostalgic and celebratory, capturing the essence of a memorable year in Indian cinema. The theme seems to revolve around a compilation or a recap of the best moments from 2013, likely from Bollywood films or events. The overall emotion evoked is one of joy and reminiscence.

Environment: The setting of the video is likely a mix of various locations commonly found in Indian films, such as cityscapes, parties, and intimate moments between characters. Given the collage style, it seems to be a fast-paced video with quick cuts between different scenes, possibly set in a contemporary urban Indian setting.