स द्वादशद्वारो युक्तोदकभ्रमच्छन्नपथः ॥ कZ_०२.४.०२ ॥
sa dvādaśadvāro yuktodakabhramacchannapathaḥ
Esta (ciudad/fortaleza) debe tener doce puertas, estar provista de un circuito de agua (foso/obras hidráulicas) y contar con rutas cubiertas u ocultas.
Gates enable controlled commerce and movement; waterworks add siege resistance; covered routes allow secure internal logistics and emergency redeployment.
Control: multiple gates distribute traffic yet remain regulated choke-points for inspection, tolls, and security screening.