Rinwa has won the assembly elections thrice. In 2003, he contested as an independent and defeated BJP's veteranleader Harishankar Bhabhada and Congress's Pt. Jai Devprasad Indoriya. He became the MLA of Ratangarh for two consecutive terms in 2008 and 2013. In 2013, he was also a minister in Vasundhara Raje's government.