Justice Sunder Mohan was born on 2.11.1969 to Late Mr. S.Sunder (Senior Advocate) and Mrs. Subbulakshmi in Coonoor. He completed his bachelor’s degree at Madras Law College, Chennai and enrolled as an Advocate on 09. 10. 1991. He was a junior of Mr. N Natarajan, a doyen of the Criminal Bar. He assisted him in several high-profile cases, including the Rajiv Gandhi Assassination case, the Jain Hawala case, the Bombay blast case, and many other such cases relating to politicians and public servants. He started his career as an intern with K Srinivasan 1990, a renowned civil law practitioner. In 1991, he joined the office of Mr. Habibullah Badshah, Senior Advocate and former Advocate General of Tamilnadu and was associated with Mr.Ilias Ali. He later joined the office of R. Shanmuga Sundaram in 1994, where he gained experience on the criminal side in the High Court and the Trial Courts. Before his elevation, he specialized in criminal matters, including defending the accused in CBI cases involving high-profile public servants with several reported judgments.
He was a resource person for the Tamil Nadu State Judicial Academy and for the Tamil Nadu Police Academy and has delivered lectures on various criminal law topics in Chennai, Madurai and Coimbatore for trainee Civil Judges, Senior Civil Judges and District Judges and to the Police Officers. He was also a resource person for the training programme conducted by the Directorate of Prosecution to train the Public Prosecutors at the Judicial Academy in Madurai during 2018-2019.
He was elevated as an Additional Judge of the High Court of Judicature at Madras on 06.06.2022.