उत्तराध्यक्षा हस्त्यश्वरथारोहाः ॥ कZ_०२.९.२९ ॥
uttarādhyakṣā hasty-aśva-ratha-ārohāḥ
The superior overseers should be mounted personnel—riders on elephants, horses, and chariots.
Mobility enables surprise inspections, faster response to irregularities, and wider supervisory reach—reducing opportunities for concealment.