Yama, of hindu origin, is represented here as a buddhist protector, holding a lasso in his left hand and a stick in his right hand. With a buffalo head, adorned with a five-skull crown, bone jewellery, a cross belt, a garland of fifty severed heads, a tiger skin dhoti, he stands on a buffalo kneeling on a corpse. Next to him is his twin sister and consort Yami, also known as Chamundi or Chamunda, always represented at a much smaller scale than him.
The above sculpture shows Yami with the head of a wild goat. In Northern India there is a temple devoted to Chamunda with votive offerings shaped like the horns of wild goats or deer.
On this more modern version, she stands with both feet on the bull