हस्तिनामेव तु शुद्धः साम्नाह्यानामुरस्यमौपवाह्यानां जघनं व्यालानां कोट्याविति ॥ कZ_१०.५.३४ ॥
hastinām eva tu śuddhaḥ sāmnāhyānām urasyam aupavāhyānāṃ jaghanaṃ vyālānāṃ koṭyāv iti
But the pure array consists of elephants alone: the sāmnāhya elephants form the breast/front; the aupavāhya elephants the rear; the vyāla elephants the corners—thus.
It enables role clarity and controlled risk: best combat elephants lead, less-suited follow in the rear, and specialized fierce units secure critical angles.