The department came into operation from the academic session 1985-86 with the introduction of H.S. course with 25 numbers of students. Classes were started in the Arts building from 12/9/1985 in the morning shift and shifted to science building in 17th October, 1986. Degree course (core only) was started in the academic session 1987-88 with 13 students. 1st batch students appeared B.Sc final examination in 1990 and 12 students passed out of 13 students. On 28th December, 2002, honorable M.P. Mr. Drupal Borgohain laid foundation stone for separate chemistry laboratory from his local area development fund and was inaugurated on 17th july, 2004. Late Prafulla Dev Memorial Chemistry laboratory was donated by Mr. Bipul Dev and his family. B.Sc (major) classes were started from 2005-06 academic sessions with 15 students. Newly constructed building was inaugurated by Mr. Pradyut Bordoloi, honorable Education Minster of Assam in 27th oct 2014. Now our department has seat capacity 40 per semester.

University rank: 58 , 65, 67, 71, 79, 89, 91, 97, 100 in 2014.