अतोऽन्यो लवणक्षारवर्गः शुल्कं दद्यात् ॥ कZ_०२.१२.३४ ॥
ato'nyaḥ lavaṇa-kṣāra-vargaḥ śulkaṃ dadyāt
अतः नमक और क्षार के अन्य वर्ग शुल्क दें।
It prevents substitution and relabeling to evade the salt regime, ensuring functional equivalence is also taxed.