Sadulpur from parts of Rajgarh tehsil, which include ILRC Rajgarh including Rajgarh Municipal Board, ILRC Hamirawas Bara, ILRC Ragha Chhoti, ILRC Sankhoo, ILRC Chainpura Chhota and ILRC Sidhmukh.

It is part of Churu District. As of 2023, its representative is Manoj Kumar of the Bahujan Samaj Party later joined Shiv Sena.

Members of the Legislative Assembly

Year	Name	Party
1962	Rawat Ram		Indian National Congress
1967	S Ram
1972	Ram Singh Rao
1977	Jaya Narain		Janata Party
1980	Deep Chand Kaswan		Independent
1985	Inder Singh Poonia		Indian National Congress
1990
1993
1998	Ram Singh Kaswan		Bharatiya Janata Party
2000	Nand Lal Poonia		Indian National Congress
2003
2008	Kamla Kaswan		Bharatiya Janata Party
2013	Manoj Kumar		Bahujan Samaj Party
2018	Krishna Poonia		Indian National Congress
2023	Manoj Kumar		Shiv Sena

Election results

2018

2018 Rajasthan Legislative Assembly election: Sadulpur

Party		Candidate	Votes	%	±%
	INC	Krishna Poonia
	NOTA	None of the Above
Majority
Turnout
	INC gain from		Swing