Answer : 4. "अर्जुन सिंह"
Explanation :

The modern princely state Karauli was founded in about 995 by Raja Bijai Pal, who is claimed descent from the Hindu god Krishna. His Highness the Maharaja maintains a military force of 281 cavalry, 1640 infantry, and 56 guns, and is entitled to a salute of 17 guns (as of 1892).