Listen to Hum To Kahun Aasmaan online. Hum To Kahun Aasmaan is a Gujarati language song and is sung by Nimesh Desai and Usha Mangeshkar. Hum To Kahun Aasmaan, from the album Bhavni Bhavai, was released in the year 1981. The duration of the song is 2:44. Download Gujarati songs online from JioSaavn.