Niviventer eha
Range
China, India, Myanmar and Nepal
The smoke-bellied white-bellied rat, Niviventer eha (also called the little Himalayan rat), is a rodent of the family Muridae described by Wroughton in 1916. It is recorded from China, India, Myanmar and Nepal (Wikipedia, general species account).
The source is a stub and gives no size, appearance, habitat, diet, behaviour or breeding detail (Wikipedia, general species account).