In 1779, British marched against the Nizam, and he had to agree to the presence of an English Resident along with army, artillery and cavalry at Hyderabad. During the period of Nizam III - Sikandar Jah, the English cantonment was named after him as Secunderabad.
In 1947 India gained independance. Nizam insisted that Hyderabad should be and independant state. He tried to achieve this with the help of Khasim Razvi and his troopers, the Razakars.
Swami Ramanand Tirtha started the 'Join India' movement. Few patriotic Muslims and Hindus of Hyderabad State who accounted for 93% of its population, joined this movement. The Communists organised village defence squads to protect the villagers from the attacks of the Nizam Police and Razakars.
Negotiations between the Nizam and the Indian Union failed. In November 1947, Nizam entered into a stand still agreement for one year. Nizam was gaining time to procure military hardware. He also sent a delegation to the U.N.O. to refer the Hyderabad case to the Security Council.On the 13th September, 1948 `Police Action' on Hyderabad commenced. The Indian Army, led by Major-General J.N.Chaudhuri entered the State from five directions. Five days later, Nizam's forces surrendered. Khasim Razvi was arrested. On September 23, the Nizam withdrew his complaint in the Security Council, and the merger of Hyderabad Dominions into the Indian Union was announced.