Sikkim was incorporated into the Union of India on 16 May 1975. Since then, every year on 16 May, the Sikkim Statehood Day is celebrated. Sikkim is the first state in the country to become 100% organic. Today all agricultural activities in Sikkim are carried out without the use of pesticides and synthetic fertilizers. Let us tell you that Kanchenjunga National Park is a World Heritage Site which is situated in Sikkim. Not only this, the Teesta river is said to be the main river flowing in this state. The tributaries of Teesta are Lhonak, Lachung and Talung. Teesta river is also called a tributary of Brahmaputra.
Statehood: In 1975 Sikkim's PM asked India to incorporate Sikkim into the Union of India. After which, the Indian army took control of the city of Gangtok and also disarmed the guards of the Chogyal palace. A referendum was held in which 97.5% supported India's accession by abolishing the monarchy. The Indian Parliament laid out the conditions in its 35th Amendment, which made Sikkim an "Associate State". Sikkim is the only state to get this status. The 36th amendment repealed the 35th amendment and Sikkim was made a full-fledged state.
Ethnicity of Sikkim: The residents of Sikkim are said to be of Nepalese origin. The native inhabitants of Sikkim are Bhutia. They migrated from Tibet in the 14th century. Lepchas lived before Bhutia. Tibetans mostly lived in the northern and eastern parts of the state.