Asurayuddha or Asuravijaya is a type of unrighteous war
mentioned in Kautilya’s Arthashastra. In this type of war, the conqueror
conquers like demons. They seize land, money, and women and make people slaves.
It is called Asura yuddha because it is believed that demons practiced such
means of warfare.
All heinous, illegal and forbidden methods of warfare are
used for obtaining victory in this type of war. There is no direct or straight fight
in Asuravijaya.
Secrecy, guile, charm spells and cheating are widely used to
attain victory.