महाविषयविक्रयो वा खनिभोगः श्रेयान् ॥ कZ_०७.११.१२ ॥
mahāviṣayavikrayo vā khanibhogaḥ śreyān
Or else, mining income is preferable when it involves the sale of major territorial products (large-scale outputs).
When mining enables large-scale saleable outputs that rapidly expand liquid funds for state needs (wages, arms procurement, diplomacy).
Select the revenue stream that best matches current strategic constraints: cash for rapid mobilization, grain for sustained provisioning.