Guwahati, formerly known as Gauhati, is the largest city of the Indian state of Assam, and also the largest metropolis in northeastern India. Dispur, the capital of Assam, is in the circuit city region located within Guwahati and is the seat of the Government of Assam. The Lokpriya Gopinath Bordoloi International Airport is the 10th busiest in India, and the busiest in the Assam and North-East of the country. A major riverine port city along with hills, and one of the fastest growing cities in India, Guwahati is situated on the south bank of the Brahmaputra. The city is known as the "gateway to North East India".