Navarajpur is a rural municipality located in the southeastern part of Siraha District, Nepal.

The office of the local bodies of Navarajpur Gaunpalika is situated in the "Shree Janta Madhyamik Vidyalaya Sonwarsha" school's building.

[clarification needed] The village has several religious places and temples, including the "Maa Hajari Sthan."

[citation needed] The nearby village of Bachahi is notable for the Ramjanki Temple, an ancient and significant religious site.

[citation needed] In 2017, a girl's hostel was constructed in Navarajpur with support from the Japanese government, aimed at improving access to higher education for female students.