Odisha, formerly Orissa, is an Indian state located in Eastern India. It is the eighth-largest state by area, and the eleventh-largest by population, with over 41 million inhabitants. The state also has the third-largest population of Scheduled Tribes in India. It neighbours the states of Jharkhand and West Bengal to the north, Chhattisgarh to the west, and Andhra Pradesh and Telangana to the south. Odisha has a coastline of 485 kilometres (301 mi) along the Bay of Bengal in Indian Ocean. The region is also known as Utkaḷa and is mentioned by this name in India's national anthem, Jana Gana Mana. The language of Odisha is Odia, which is one of the Classical languages of India.

India is a federal union comprising 28 states and 8 union territories, for a total of 36 entities. The states and union territories are further subdivided into districts and smaller administrative divisions.