History of the British Raj
The history of the British Raj refers to the period of British rule on the Indian subcontinent between 1858 and 1947. The system of governance was instituted in 1858 when the rule of the East India Company was transferred to the Crown in the person of Queen Victoria (who in 1876 was proclaimed Empress of India). It lasted until 1947, when the British provinces of India were partitioned into two sovereign dominion states: the "Dominion of India" and the "Dominion of Pakistan", leaving the princely states to choose between them. The two new dominions later became the Republic of India and the Islamic Republic of Pakistan (the eastern half of which, still later, became the People's Republic of Bangladesh). The province of Burma in the eastern region of the Indian Empire had been made a separate colony in 1937 and became independent in 1948.
Treaty of Punakha
In August 1947, after India gained independence as a sovereign nation, the British presence upon which the Treaty of Punakha depended was no longer. Kingdoms such as Bhutan were given the option to remain independent, or join the Indian Union. Bhutan chose to remain independent and on 8 August 1949, Bhutan's independence was recognised by India. On 23 April 1948, Sonam Topgay Dorji, also of the Dorji family, headed the Bhutanese delegation to recently independent India, meeting Prime Minister Jawaharlal Nehru. Topgay and Nehru established Bhutan–India relations, prompted by a growing security concern over Communist China. Bilateral negotiations lasted through 8 August 1949, culminating in the Indo-Bhutan Treaty. Under this agreement, India returned the land around Deothang, subject of part of the 1865 Anglo-Bhutanese War.