In 1768 Gurkhas emerged as a powerful state and it shared boundary with Tibet, Bengal and Awadh.
British’ boundary touched the Nepal territory when British acquired the district of Gorkhpur and Basti from Nawab of Awadh through Subsidiary Alliance Treaty.
As a result conflicts arouse between British and Gurkhas very often.
In May 1814 Gurkhas attacked British Police post and killed 18 policemen so Lord Hastings declared war.
Gurkhs followed Guerilla Warfare and using deep forest as shield against British.
In the end of 1814 Amar Singh Tapar the Army general of Nepal surrendered to Britsh.
After many defeats the war concluded in March 1816 with Treaty of Sagauli.
After this victory Lord Hasting became called Marquis of Hastings.
Gurkhas gave up their claim over Terai region and withdrawn from Sikkim.
Gurkhas ceded Kumaon and Garhwal to British and British also secured areas around Shimla and Northwestern region.
