Odisha, formerly Orissa, is a state in eastern India. It has an area of 155,820 km2 (60,160 sq mi). The state has a population of almost 42 million. Oriya, or Odia, is the most widely spoken language in the state. It is used on an official basis with English. Chilika lake is in Odisha. It is the largest home to migratory birds on the Indian subcontinent. Odisha is the eighth largest Indian state. It also has the eleventh highest population. The capital city of the state is Bhubaneswar. Other major cities in the state are Cuttack, Sambalpur and Rourkela. Odisha is bordered by the states of West Bengal to the north east, Jharkhand to the north west, Chhattisgarh to the west, Andhra Pradesh to the south. It has a 482 km (300 mi)] coastline along the Bay of Bengal.