
Photo: Thomas Hardwicke · Public domain
Oligodon catenatus
Range
India (Mizoram and elsewhere), Myanmar, Vietnam, Cambodia, China, Thailand and Laos
The Assam kukri snake is a snake of the subfamily Colubrinae found in India, Myanmar, Vietnam, Cambodia, China, Thailand and Laos (Wikipedia, general species account).
The Reptile Database lists Mizoram for India. The account used here gives no further detail.