Description: Zara Si Dosti (Happy Bhag Jayegi) is sung by Arijit Singh and music is directed by Sohail Sen. Download Zara Si Dosti (Happy Bhag Jayegi) mp3song, download Zara Si Dosti (Happy Bhag Jayegi) mp3 song in 128 kbps and 320 kbps and itune rip also.