Yantras or Mechanical Contrivances in Ancient India c2.138

c2.138

Having told the story, the Brahman told the commander-in-chief Rumaṇvān that architects made such secrets of their knowledge, that all of them might well be bound and beaten till they agreed to make the aerial car. As Rumaṇvān was putting that advice into action, there came a fresh architect who offered to manufacture an aerial car.