The god Brahma eventually appears to Kalki and reveals to him that no earthly or celestial weapon can kill the brothers if they are allowed to hold on to one another; the only way Kalki can defeat them is to separate and attack them both simultaneously. Kalki then forces himself between the two and lands crushing blows to each asura's temple at the same time. They both die, this time forever.
Brahma reveals to Kalki that the brothers can only be defeated if they are separated and attacked simultaneously; Kalki must force himself between them and strike both temples at once. This results in their deaths, ending their reign forever.