Listen to Happy Diwali Hai online. Happy Diwali Hai is a Bhojpuri language song and is sung by Harsh Jha and Sneh Upadhaya. Happy Diwali Hai, from the album Happy Diwali Hai, was released in the year 2019. The duration of the song is 3:07. Download Bhojpuri songs online from JioSaavn.