Mood: The mood of the video appears to be calm, serene, and possibly romantic. The theme seems to revolve around love, relationships, or a rural Indian setting, given the title 'Kusum Ka Biyaah' which translates to 'Kusum's marriage'. The overall emotion evoked is peaceful and contemplative.

Environment: The setting of the video seems to be a rural or natural environment, possibly in the mountains or hills of India. The presence of a tree, mountains in the background, and a serene landscape suggests a countryside or village setting during either sunrise or sunset, given the warm orange glow of the sun.