Mangalgarh, Samastipur, a village in the Hasanpur Tehsil of Samastipur, Bihar, India
In 1934, after a major earthquake rocked Bihar and which severely damage the main buildings, the Imperial Institute was shifted to the new Pusa campus in New Delhi and that eventually became Indian Agricultural Research Institute.
The Burhi Gandak, runs a zig-zag course through the districts of Samastipur and Begusarai before covering a short distance in Khagaria district, running by the side of the town of Khagaria, and flows into the Ganges.