The kingdom was expanded towards Palpa and afterwards reached the region of Rajapur, Tanahun, Lama, Pyuthan, Madariya, Darchha, Risinga, Vinayakpur, and Gulmi.

[3] Starting during the reign of Mukundasena II, the Makwanpur kingdom fragmented into smaller autonomous principalities ruled by members of the Sen dynasty.

[8] An inscription belonging to the Makwanpur prince, Jagatasena, was discovered in Janakpur at the Janaki Ram monastery and throws light on the economic condition of the state.

The inscription reads:[9] The desistance paper is given through Sri Mahinath Pajiyar, place Janakpur, Praganna Korari, Further, the settlement of the monastery failed which was made by our ancestor.

Signature made by Janatasena, Thakur Patwari, Witness Nanhku Raut and Ram Mandal and Mangaru Ran and Bechu Mandai residents of Janakpur Praganna Korari.The inscription details that the Makwanpur kingdom is unable to provide financial assistance to the Janaki Ram monastery.