Kautilya's Arthashastra 2.15.42

2.15.42

pañcadroṇe śālīnāṃ dvādaśāḍhakaṃ taṇḍulānāṃ kalabhabhojanam, ekādaśakaṃ vyālānām, daśakam aupavāhyānāṃ navakaṃ sāmnāhyānām, aṣṭakaṃ pattīnām, saptakaṃ mukhyānām, ṣaṭkaṃ devīkumārāṇām, pañcakaṃ rājñām, akhaṇḍapariśuddhānāṃ vā tuaṇḍulānāṃ prasthaḥ //

Rice prepared in such a way that five dróna of sáli yield ten ádhakas of rice will be fit to be the food of young elephants; eleven ádhakas from five drónas for elephants of bad temper (vyála); ten ádhakas from the same quantity for elephants trained for riding; nine ádhakas from the same quantity for elephants used in war; eight ádhakas from the same for infantry; eleven ádhakas from the same for chiefs of the army; six ádhakas from the same for queens and princes and five ádhakas from the same quantity for kings.