He should destroying all the bridges over the rivers in his kingdom. He should draw out the waters of all the tanks in his territories, or, if incapable to do so, cause them to be poisoned.
नदीमार्गेषु च तथा संक्रमानवसादयेत्। जलं विस्त्रावयेत् सर्वमविस्त्राव्यं च दूषयेत्॥