Mood: The mood of the video appears to be romantic and playful, with a sense of youthful energy. The presence of the couple, colorful background, and the title 'Dil Dhak Dhak Karta Hai' which translates to 'My heart beats rapidly', suggests a lighthearted and affectionate tone. The theme seems to revolve around love, relationships, or a romantic encounter.

Environment: The environment seems to be a vibrant and lively setting, possibly a party or a celebration, indicated by the colorful background and the couple's attire. The atmosphere appears to be electric and festive, suggesting an urban or modern setting.