Rao Sahab
In 1739, the Iranian ruler Nadir Shah attacked India. Rao Bal Kishan, with his army and with the forces of Delhi, fought Nadir Shah. His army included 5000 infantry and 2000 cavalry.  In February 1739, Nader Shah captured Sirhind and moved towards the field of Karnal, a battle destined to be fateful to the Mughal rulers. On 13 February, the battle of Karnal was fought. Emperor Muhammad Shah had over a hundred thousand force against Nader Shah's 55,000 men but was still decisively defeated because royal force left the Battlefield at Karnal. Only Rao Balkishan Singh  fought to Nadir shah, he was killed in the battle but immortalized the name "Vijay or Veergati". The Battle was ambitious as Nadir Shah itself remarked to Mughal Emperor that if your combined forces helped Rao Balkrishna of Rewari, than I might not able to enter in Delhi. I had never seen any warrior like him brave , Fierce and strong. After this to a royal chhatri kiosk was made by Mughal Emperor to remark tribute to Rao Balkrishna. Even today the Chhatri is present in Karnal.