| Honorific-Prefix: | Yang Berhormat Tuan |
| Arul Kumar Jambunathan | |
| Honorific-Suffix: | MLA |
| Native Name: | அருள் குமார் ஜம்புநாதன் |
| Birth Date: | 12 September 1985 |
| Birth Place: | Tampin, Negeri Sembilan, Malaysia |
| Office: | Member of the Negeri Sembilan State Executive Council |
| Term Start: | 24 August 2023 |
| 1Blankname: | Menteri Besar |
| Term Start1: | 23 May 2018 |
| Term End1: | 26 January 2023 |
| Monarch1: | Muhriz |
| 1Blankname1: | Menteri Besar |
| 1Namedata1: | Aminuddin Harun |
| Predecessor1: | Manickam Letchuman |
| Constituency1: | Nilai |
| Office2: | Political Secretary to the Minister of Transport |
| Monarch2: | Abdullah |
| Primeminister2: | Anwar Ibrahim |
| Minister2: | Anthony Loke Siew Fook |
| Term Start2: | 27 January 2023 |
| Term End2: | 23 August 2023 |
| Predecessor2: | Ling Tian Soon |
| Constituency Am3: | Nilai |
| Assembly3: | Negeri Sembilan State Legislative |
| Majority3: | 4,047 (2013) 9,825 (2018) 10,889 (2023) |
| Term Start3: | 5 May 2013 |
| Predecessor3: | Yap Yew Weng (PR–DAP) |
| Office8: | Faction represented in Negeri Sembilan State Legislative Assembly |
| Subterm8: | 2013–2018 |
| Suboffice8: | Democratic Action Party |
| Subterm9: | 2018– |
| Suboffice9: | Pakatan Harapan |
| Party: | Democratic Action Party (DAP) |
| Otherparty: | Pakatan Harapan (PH) Pakatan Rakyat (PR) |
| Occupation: | Politician |
Arul Kumar a/l Jambunathan is a Malaysian politician who has served as Member of the Negeri Sembilan State Executive Council (EXCO) in the Pakatan Harapan (PH) state administration under Menteri Besar Aminuddin Harun since August 2023 and from May 2018 to his resignation in January 2023 as well as Member of the Negeri Sembilan State Legislative Assembly (MLA) for Nilai since May 2013. He served as Political Secretary to the Minister of Transport Anthony Loke Siew Fook from January 2023[1] to August 2023. He is a member of the Democratic Action Party (DAP), a component party of the PH coalition.
| Constituency | Candidate | Votes | Pct | Opponent(s) | Votes | Pct | Ballots cast | Majority | Turnout% | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2013 | N10 Nilai | (DAP) | 10,378 | 59.79% | Gan Chee Biow (MCA) | 6,331 | 39.14% | 17,573 | 4,047 | 85.30% | |||
| Ahmad Kamarulzaman Abu (IND) | 490 | 1.07% | |||||||||||
| S. Karupiah @ Rajashegher K. Sithambam (IND) | 47 | 1.07% | |||||||||||
| 2018 | Arul Kumar Jambunathan (DAP) | 14,219 | 63.49% | Leaw Kok Chan (MCA) | 4,394 | 21.67% | 21,025 | 9,825 | 85.30% | ||||
| Mohd Abu Zahrim Abdul Rahman (PAS) | 2,151 | 14.84% | |||||||||||
| 2023 | Arul Kumar Jambunathan (DAP) | 19,133 | 66.29% | bgcolor= | Gan Chee Biow (BERSATU) | 8,244 | 28.56% | 29,067 | 10,889 | 68.93% | |||
| Omar Mohd Isa (IND) | 1,430 | 4.95% | |||||||||||
| Yessu Samuel (IND) | 57 | 0.20% | |||||||||||