Mood: The mood of the video appears to be romantic and melancholic, with a focus on music and performance. The theme seems to revolve around love and heartbreak, as suggested by the title 'Teri Galliyan', which translates to 'Your Lanes' or 'Your Streets', often used as a metaphor for a loved one's presence. The overall emotion conveyed is one of longing and nostalgia.

Environment: The setting of the video seems to be a recording studio or a darkened performance space, given the presence of a microphone and the dark background with scattered light effects. The environment is intimate and focused on the singer, Diwakar Sharma, who is the central figure in the frame.