When Kaal Bhairav was charged of Brahma Hatya, he arrived to Kashi to seek penance and it was only while in the holy land of Kashi that he was eventually no cost from the sin on the killing. From that point on, Kaal Bhairav is claimed to reside in Kashi, https://vashikaran20842.wizzardsblog.com/30093550/considerations-to-know-about-bhairav