Mood: The mood of the video appears to be lively and energetic, with a sense of joy and playfulness. The theme seems to be related to love, relationships, or friendship, given the title 'Phir Milenge Chalte Chalte', which translates to 'We Will Meet Again While Walking'. The overall emotion conveyed is upbeat and carefree.

Environment: The setting of the video appears to be an urban or street setting, possibly in India, given the cultural context and attire of the individuals. The background features a green screen, suggesting that the video might be a song or dance sequence from a Bollywood film. The cobblestone or brick-paved ground and the casual, yet traditional clothing of the dancers, add to the urban Indian setting.