सस्यवर्णानामर्घान्तरेण विनिमयः परिवर्तकः ॥ कZ_०२.१५.०५ ॥
sasyavarṇānām arghāntareṇa vinimayaḥ parivartakaḥ
«Parivartaka» est l’échange d’un type de grain contre un autre, en tenant compte des différences de valeur/prix.
It allows the state to substitute commodities for logistics needs while keeping accounts fair, preventing hidden losses through unequal barter.