The phalanx appears in Greek texts.
Chandragupta Maurya ( reign : 321 -- 298 BCE ) , also called Chandragupta or Chandra Gupta , was the founder of the Maurya Empire in ancient India . Phalanx . In Greek texts , the phalanx may be deployed for battle , on the march , even camped , thus describing the mass of infantry or cavalry that would deploy in line during battle .