Nepalgunj, also spelled Nepalganj, is a Sub-Metropolitan City in Banke District, Nepal. It lies on the Terai plains near the southern border with Bahraich district in Uttar Pradesh, India. Nepalgunj is 153 kilometers south-west of Ghorahi and 16 km south of Kohalpur. Former Village Development Committee: Udayapur, Bhawaniyapur, Piprahawa, Jaispur, Paraspur, Indrapur, Khaskarkado, Bashudevpur, Manikapur and Puraina were added to territory in order to make it Sub metropolitan city on 2071 Paush 28 and later Puraini was also added in list on 2072 Paush 21. Further, while restructuring of local levels nationwide, ward no. 23 was taken out to Janaki Rural Municipality and ward no. 7 of Hirminiya VDC was added to Nepalgunj.

Ghorahi is the largest sub-metropolitan city by area and population of Lumbini Province. The city lies in Lumbini Province in the Mid-Western part of Nepal. It is the largest city of Dang Deukhuri District of southwest Nepal. Located in the Inner Terai region, it lies 413 kilometres (257 mi) south-west of Nepal's capital Kathmandu and is one of the Counter Magnets being developed as an alternative centre of growth to help ease the migration and population explosion in the Kathmandu metropolitan area. It is the largest city of the Rapti Zone and is surrounded by the Sivalik Hills to the south and Mahabharata Range to the north.