Craspedocephalus occidentalis
Habitat
Trees in wet forest
Range
Central Western Ghats, Kerala
Craspedocephalus occidentalis is a venomous, tree-dwelling pit viper from southern India that has often been confused with the bamboo pit viper. It is known to live in trees in the wet forests of the Western Ghats (Wikipedia, general species account).
The Reptile Database lists Kerala and the central Western Ghats. The account used here gives no further detail.