Kautilya's Arthashastra 9.2.26

9.2.26

hastiyantraśakaṭagarbhakuntaprāsahāṭakaveṇu.śalyavad hastibalasya pratibalam //

The army which possesses elephants, machines, sakatagarbha (?), Kunta (a wooden rod), prása (a weapon, 24 inches long, with two handles), Kharvataka (?), bamboo sticks, and iron sticks is the army to oppose an army of elephants.