Listen to Kya Janu Sajan online. Kya Janu Sajan is a Hindi language song and is sung by R.D. Burman and Lata Mangeshkar. Kya Janu Sajan, from the album Yaara Seeli Seeli, was released in the year 2004. The duration of the song is 5:42. Download Hindi songs online from JioSaavn.