This constituency came into existence on the Constituency Delimitation Commission (CDC) report submitted on 31 August 2017.

[1]Dhanusha 3 is one of the constituency of national importance in Nepal.

[2][3][4] Due to presence of some projects of national recognition like Rajarshi Janak University, ADB urban development project, Janakpur-Jatahi-Ayodhya 6 lane and Janakpur-Jaynagar railway this constituency is taken as the pocket area of Nepali Congress in regard to development.

[5][6][7][8] Dhanusha 3 incorporates Mukhiyapati Musharniya Rural Municipality, Nagarain Municipality, Dhanauj Rural Municipality, wards 9 of Bideha Municipality and wards 1–8, 10, 12, 15, 16, 20 and 23–25 of Janakpur Sub-metropolitan City.

It encompasses the following Madhesh Provincial Assembly segment