I have a test where I am given the following article, what is an answer for the question: What was the full name of the Chogyal who was supported by minority the Bhutia and Lepcha upper classes ?

Three princely states bordering India—Nepal, Bhutan and Sikkim—were not integrated into the Republic of India in the period between 1947 and 1950. Nepal had been recognised by the British and the Government of India as being de jure independent. Bhutan had in the British period been considered a protectorate outside the international frontier of India. The Government of India entered into a treaty with Bhutan in 1949 continuing this arrangement, and providing that Bhutan would abide by the advice of the Government of India in the conduct of its external affairs.Historically, Sikkim was a British dependency, with a status similar to that of the other princely states, and was therefore considered to be within the frontiers of India in the colonial period. On independence, however, the Chogyal of Sikkim resisted full integration into India. Given the region's strategic importance to India, the Government of India signed first a Standstill Agreement and then in 1950 a full treaty with the Chogyal of Sikkim which in effect made it a protectorate which was no longer part of India. India had responsibility for defence, external affairs and communications, and ultimate responsibility for law and order, but Sikkim was otherwise given full internal autonomy. In the late 1960s and early 1970s, the Chogyal Palden Thondup Namgyal, supported by the minority Bhutia and Lepcha upper classes, attempted to negotiate greater powers, particularly over external affairs, to give Sikkim more of an international personality. These policies were opposed by Kazi Lhendup Dorji and the Sikkim State Congress, who represented the ethnic Nepali middle classes and took a more pro-Indian view.In April 1973, anti-Chogyal agitation broke out and protestors demanded popular elections. The Sikkim police were unable to control the demonstrations, and Dorji asked India to exercise its responsibility for law and order and intervene. India facilitated negotiations between the Chogyal and Dorji, and produced an agreement, which envisaged the...

Chogyal Palden Thondup Namgyal