India Office in the context of "Company rule in India"

The Colonial Office was a government department of the Kingdom of Great Britain and later of the United Kingdom, first created in 1768 from the Southern Department to deal with colonial affairs in North America (particularly the Thirteen Colonies, as well as the Canadian territories recently won from France), until merged into the new Home Office in 1782. In 1801, colonial affairs were transferred to the War Office in the lead up to the Napoleonic Wars, which became the War and Colonial Office to oversee and protect the colonies of the British Empire. The Colonial Office was re-created as a separate department 1854, under the colonial secretary. It was finally merged into the Commonwealth Office in 1966.

Despite its name, the Colonial Office was responsible for much, but not all, of Britain's Imperial territories; the protectorates fell under the purview of the Foreign Office, and the British Presidencies in India were ruled by the East India Company until 1858, when the India Office was formed to oversee the administration of the new Viceroyalty of India (the Crown ruled India directly through a Viceroy after the Indian Rebellion), while the role of the Colonial Office in the affairs of the Dominions was replaced by the Dominion Office in 1925.

The Treaty of Gandamak (Dari: معاهده گندمک, Pashto: د گندمک تړون) officially ended the first phase of the Second Anglo-Afghan War. The Afghan emir Mohammad Yaqub Khan ceded various frontier areas as well as Afghanistan's control of its foreign affairs to the British Raj.

It was signed on 26 May 1879 by King Mohammad Yaqub Khan of Afghanistan and Sir Louis Cavagnari of the British Government of India at a British army camp near the village of Gandamak, about 70 miles (110 km) east of Kabul. The treaty was ratified by Lord Edward Robert Bulwer-Lytton, Viceroy of India, on 30 May 1879.

His (or Her) Majesty's Principal Secretary of State for India, known for short as the India secretary or the Indian secretary, was the British Cabinet minister and the political head of the India Office responsible for the governance of the British Indian Empire, including Aden, Burma and the Persian Gulf Residency. The post was created in 1858 when the East India Company's rule in Bengal ended and India, except for the Princely States, was brought under the direct administration of the government in Whitehall in London, beginning the official colonial period under the British Empire.

In 1937, the India Office was reorganised which separated Burma and Aden under a new Burma Office, but the same secretary of state headed both departments and a new title was established as His Majesty's Principal Secretary of State for India and Burma. The India Office and its secretary of state were abolished in August 1947, when the United Kingdom granted independence in the Indian Independence Act, which created two new independent dominions, India and Pakistan. Burma soon achieved independence separately in early 1948.