उपरिनिविष्टं नाधरतटाकस्य पूरास्रावं वारयेदन्यत्र त्रिवर्षोपरतकर्मणः ॥ कZ_०३.९.३० ॥
upariniviṣṭaṃ nādharataṭākasya pūrāsrāvaṃ vārayedanyatra trivarṣoparatakarmaṇaḥ
上方水塘不得阻碍下方水塘的洪水泄放/出流;但若下方工程已三年未使用/未运作,则属例外。
It ties continued protection of an outflow right to active use/maintenance, preventing dormant works from blocking necessary reconfiguration.