Justice Kannammal Shanmuga Sundaram B.Sc, LL.M was born on 20th July 1960 to Thiru Late N. Shanmuga Sundaram and Thirumathi Late S. Maragatham at Udumalpet. She did her schooling at Government High School, Udumalpet, and graduation in B.Sc. at Sri Meenakshi Government Arts College for Women, Madurai. She did her B.L. at Coimbatore Law College and LL.M (Labor and Industrial Law) at Annamalai University. She got enrolled as an Advocate on 15th October 1986. She practiced at Udumalpet and Madurai under Thiru D. Chinnasami & Thiru R.S. Janakiraman respectively for four and a half years in Civil side. She entered Judicial Service on 01st July 1991 and served for 29 years as Judicial Magistrate, District Munsif, Subjudge, Chairman Tax Appellate Tribunal, Chief Judicial Magistrate, District Judge (CBI Court & Family Court), Presiding Officer (Labour Court) and as Administrator General and Official Trustee of Tamil Nadu. She got elevated as Additional Judge, High Court on 3rd December 2020.