विषण्णालिकमुभयतोरात्रं यामतूर्यम् ॥ कZ_०२.३६.३४ ॥
viṣaṇṇālikam ubhayato-rātraṃ yāma-tūryam
दोनों रातों में ‘विषण्णालिका’ संकेत हो, और प्रत्येक प्रहर के लिए पहरा-संकेत (याम-तूर्य) हो।
To synchronize patrols, mark watch changes, deter crime through audible presence, and provide citizens predictable cues for curfew/safety routines.
It implies standardized SOPs for urban security—timekeeping, instrumentation, and coordinated manpower deployment.