The correct option is D 1818
The battle of Koregaon was part of the Third Anglo Maratha war(1817-1818), a series of war that culminated in the defeat of the Maratha empire and control of the British East India Company in nearly all of Western, Central, and Southern India. This battle was fought in January 1818 between Peshwa forces and the British army, "victory pillar" in Koregaon commemorate this battle.