Kautilya's Arthashastra 2.19.2

2.19.2

dhānyamāṣā daśa suvarṇamāṣakaḥ, pañca vā guñjāḥ //

THE Superintendent of Weights and Measures shall have the same manufactured. 10 seeds of másha (Phraseolus Radiatus) or 5,, gunja (Cabrus Precatorius) = 1 suvarna-másha. 16 máshas = 1 suvarna or karsha. 4 karshas = 1 pala. 88 white mustard seeds = 1 silver-másha. 16 silver mashas or 20 saibya seeds = 1 dharana. 20 grains of rice = 1 dharana of a diamond.