The Chogyal were the monarchs of the former Kingdom of Sikkim, which belonged to the Namgyal dynasty. The Chogyal was the absolute monarch of Sikkim from 1642 to 1973, and the constitutional monarch from 1973 to 1975, when the monarchy was abolished and the Sikkimese people voted in a referendum to make Sikkim the 22nd state of India.

Sikkim is a state in northeastern India. It borders the Tibet Autonomous Region of China in the north and northeast, Bhutan in the east, Koshi Province of Nepal in the west, and West Bengal in the south. Sikkim is also close to the Siliguri Corridor, which borders Bangladesh. Sikkim is the least populous and second-smallest among the Indian states. Situated in the Eastern Himalaya, Sikkim is notable for its biodiversity, including alpine and subtropical climates, as well as being a host to Kangchenjunga, the highest peak in India and third-highest on Earth. Sikkim's capital and largest city is Gangtok. Almost 35% of the state is covered by Khangchendzonga National Park – a UNESCO World Heritage Site.