The extensive bamboo forests are dominated by the monopodial Melocanna baccifera with patches of the sympodial Dendrocalamus longispathus. Other species of bamboo are Bambusa tulda, Dendrocalamus hamiltonii and Schizostachyum polymorphum.
Major fauna of the Reserve includes Panthera tigris, Panthera pardus, Neofelis nubulosa, Cuon alpinus, Rusa unicolor, Muntiacus muntjac, Bos gaurus, Melusus ursinus, Hoolock leuconedys, Arctictis binturong, Erethizon dorsatum, Nycticebus sp., Felis chaus, Ursus americanus, Ratufa indica, Semnopithecus entellus, Macaca mulatta, Sus scrofa, Lutra sp. etc.