Listen to Hat Hat Sainyaji online. Hat Hat Sainyaji is a Bhojpuri language song and is sung by R.K. Arun and Bijli Rani. Hat Hat Sainyaji, from the album Hamra Choli Mein, was released in the year 1999. The duration of the song is 7:13. Download Bhojpuri songs online from JioSaavn.