व्याजीपरिशुद्धौ पणयात्रा ॥ कZ_०४.१.४५ ॥
vyājīpariśuddhau paṇayātrā
The official valuation/exchange schedule (paṇayātrā) is to be applied with verification of purity against adulteration by mixture (vyājī).
Rates are meaningful only if tied to verified metal content; purity checks prevent a mismatch between nominal value and intrinsic value.