Yantras or Mechanical Contrivances in Ancient India c2.70

c2.70

And before the *Triśūla* and *Cakra*, which are known, there occurs the *Śataghni*, the centicide, which is mentioned in all descriptions of warfare in old literature, but as to the exact nature of which there is difference of opinion. Bhaṭṭasvāmin takes it as a huge, cannon-like, cylindrical thing 'with wheels, placed on the parapet.