If one gets rid of eliminates bhupur from Kāla Bhairavaācāra Yantra and also have the remaing facets of yantra intact then that becomes Kāla Bhairavaācāra Manḍala. According to Siddha Dharma, in the event the universe was made then Kāla Bhairava manifested as Kāla or time as formless facet of Bhairava. https://daltonjdrcl.aboutyoublog.com/31612441/top-bhairav-secrets