Manuraj is a lawyer with the firm Ganesan & Manuraj Advocate and is also a media spokesperson for the DMK (Dravida Munnetra Kazhagam) party. He is also on the Steering Committee of the School of Policy and Governance. He has worked as a Parliamentary Advisor for the DMK for 5 years. In November 2010, Manuraj was a Fellow of the 'Legislative Fellows Program' organized by the US State Department. In July 2013, he was invited to participate in the 'European Union Visitor Program', with fellowships in Brussels, Strassbourg and The Hague. In August 2017, he was part of multi-party delegation to Israel and Palestine. Manuraj has run tech-based outreach campaigns to engage citizens on civic issues and study participatory governance models.