Kaal (death and time) Bhairav is the guardian of Kashi. The fierce form of Lord Shiva and the vehicle is a dog.
Kaal Bhairav removes fear of death.
The temple is older and it was rebuilt in 17th century.
Kaal Bhairav appeared when Lord Brahma showed arrogance. Moral of the story is to be humble.
At the entrance to the right is Lord Hanuman. He is also situated to the right at the Kashi Vishwanath temple.
