Listen to Chemistry Department online. Chemistry Department is a Hindi language song and is sung by Manohar Mahajan, Sayeed-Ul-Hassan, Ramesh Tiwari, Ajay Chaddha, Ajay Kashmiri, Munna Khan, Kalim Mojiram and Rupa Sangle. Chemistry Department, from the album Jokes: Bhag, 4 (Manohar Mahajan Dwara Prastut), was released in the year 2000. The duration of the song is 0:25. Download Hindi songs online from JioSaavn.