Traditionally the army in the ancient Hindu world was known
as Chaturanga Bala. The army constituted of four limbs, namely, the infantry,
the cavalry, the elephantry and the chariot corps as per the Mahabharata.
The smallest unit was known as patti and it composed of a
chariot, one elephant, three horses and five foot soldiers.
Patti was followed by seven units in the ascending order,
namely, senamukha, gulma, gana, vahini, prtana, camu and anikini.
In composition, each one of these units was three times as
big as the unit preceding it.
The highest unit was Akshauhini which was ten times bigger
in composition than the anikini.