The process or system of removing excess water or liquid waste from an area.

A natural or artificial channel through which water flows or is managed.

जलनिकासी चैनल

English Usage: The transverse drainage channels were designed to prevent flooding.

Hindi Usage: पार्श्व जल निकासी चैनलों को बाढ़ रोकने के लिए डिज़ाइन किया गया था।