Conclude the puja by undertaking the aarti of Kaal Bhairav. You may sing a Bhairav Aarti or simply chant his name though waving the diya before the deity. The Rigveda described Rudra as being the entity in whom all beings reside and from whom every little thing emerges. Based on https://cbpsdirectory.com/listings579779/kaal-bhairav-options