Explanation:

Muzaffarpur District is one of the thirty-eight districts of Bihar state, India. Muzaffarpur district is part of and also the headquarters of Tirhut Division (Tirhut). Tirhut is the ancient name of all of northern Bihar.

Muzaffarpur district is served by rivers Gandak, Budhi Gandak, Bagmati and Lakhandei. Many streams pass through the district. The area has been prone to floods. The district lies in the fertile region of Gangetic plain. Muzaffarpur district occupies an area of 3,175.9 square kilometres (1,226.2 sq mi), comparatively equivalent to Canada's Mansel Island.