Bhairava in Sanskrut means TERRIBLE .He is one of the most important deities of Nepal, sacred to Hindus . Bhairava is invoked in prayers to destroy enemies.Bhairava has a dog as his divine vehicle .
HERE ARE TWO MYTHOLOGICAL STORIES ABOUT THE ORIGIN OF KAAL BHAIRAV .
1) The origin of Bhairava can be traced to the conversation between Lord Brahma and Lord Vishnu recounted in "Shiv Maha-Purana" where Lord Vishnu asks Lord Brahma who is the supreme creator of the Universe. Arrogantly, Brahma tells Vishnu to worship him because he (Brahma) is the supreme creator. This angered Shiva who in reality is the creator of all. Shiva then incarnated in the form of Bhairava to punish Brahma. Bhairava beheaded one of Brahma's five heads and since then Brahma has only four heads. When depicted as Kala Bhairava, Bhairava is shown carrying the amputated head of Brahma .
2) Another story of the origin of Bhairava is the tale of Sati , wife of Shiva. Sati, the daughter of the king of gods, Daksha had chosen to marry Shiva. Her father disapproved the alliance because he perceived Shiva as an asetic associated with animals and ghosts and a frugal lifestyle. Eventually, Daksha held a yagna (a ritualistic sacrifice) and invited all the Gods , but not Sati and Shiva. Sati came to the yagna alone, where Daksha publicly spoke in a belittling manner about Shiva. Sati could not bear to hear her husband insulted and offered herself to the sacrificial pyre.
When Shiva learned of this, he destroyed the yagna and killed Daksha by beheading him. Shiva carried Sati's corpse on his shoulders and ran uncontrollably all around the world for days. Since this would eventually destroy all creation, Vishnu used his Sudarshan Chakra (divine discus) to cut Sati's body into pieces, which then fell all around. These spots where Sati's body parts fell are now known as SHAKTI PEETHS . In the form of the frightful Bhairava, Shiva is said to be guarding each of these Shaktipeeths. Each Shaktipeeth temple is accompanied by a temple dedicated to Bhairava.
IT IS SAID THAT IF YOU HAVE UN FULFILLED WISH & IF YOU ASK A MANNATH THAT IF THE WISH IS FULL FILLED YOU WILL OFFER SILVER ANKLETS TO KAAL BHAIRAV THAN YOUR WISH IS 100 % FULL FILLED .