Kautilya's Arthashastra 2.19.18

2.19.18

tasyāḥ śatapadād ūrdhvaṃ viṃśatiḥ pañcāśat śatam iti padāni kārayet //

Likewise a balance called parimání of twice as much metallic mass as that of samavrittá and of 96 angulas in length shall be made. On its lever, marks such as 20, 50 and 100 above its initial weight of 100 shall be carved. 20 tulas == 1 bhára. 10 dharanas == 1 pala. 100 such palas == 1 áyamání (measure of royal income).