Kautilya's Arthashastra 7.17.41

7.17.41

paricārakacchadmanā vā kiṃcid arūpavelāyām ādāya nirgacchet, suruṅgāmukhena vā niśopahāreṇa //

Or the prince may be removed concealed under things, clothes, commodities, vessels, beds, seats and other articles by cooks, confectioners, servants employed to serve the king while bathing, servants employed for carrying conveyances, for spreading the bed, toilet-making, dressing, and procuring water; or taking something in pitch dark, he may get out, disguised as a servant.