Bhairav's First manifestation is described from the basic Shakti Samagam Tantra. A demon named Aapad underwent Severe repentance and became invincible in historic moments. He began to abuse his electrical power by harassing equally deities and human beings. Once Bhairav had entered Kashi the begging-bowl (skull) fell on the ground https://www.youtube.com/@vashikaranspecialist1/search?query=bhairav