Kautilya's Arthashastra 5.6.16

5.6.16

yadi vā kaścin mukhyaḥ sāmantādīnām anyatamaḥ kopaṃ bhajeta taṃ "ehi, rājānaṃ tvā kariṣyāmi" ity āvāhayitvā ghātayet //

Or if a chief among the neighbouring kings seems to give trouble, the minister may invite him, saying "come here and I shall make thee king," and then put him to death; or he may be kept at bay by taking such measures as can ward off dangers.