The department was established in 1973 at SRT Campus old Tehri with UG courses (Three years degree). The PG courses (Two years degree) with specialization in Entomology was introduced in July 1986.  The Entomology lab has a rich collection of entomo-fauna of Garhwal region. Research on bio – diversity, ecology of collembola and aquatic insect fauna is carried out in the lab. The lab also helped in identification of insects used as food by Cheer pheasants. The Bio – ecology on Hyrenia recurvalis, a serious insect pest of Chauli/Raamda also studied.

Fish reproduction and Conservation Biology research lab has developed artificial breeding technique and Cryo preservation protocol for the semen of Snow trout fish species. The protocol has opened the avenue for the ex – situ conservation of the Snow trout species.