Biratnagar is a sub-metropolitan municipality and the fourth largest city of Nepal after Kathmandu, Pokhara and Patan. Biratnagar is the industrial capital of Nepal and has a total area of 22.58 mi² (58.48 km²). Its geographical location is 26°28'60"N 87°16'60"E. The city is located in Morang District in the Kosi Zone of eastern Nepal. It lies 399 km east of Nepal's capital, Kathmandu, and 6 km north of the border of the Indian state of Bihar.