C. Aryama Sundaram earned his law degree from Madras Law College after graduating from the Madras University as a gold medalist in philosophy. He enrolled with the Madras Bar Council on 26 November, 1980 and joined a law firm in Chennai called King & Partridge. In 1984, he started his own firm: Nataraj Rao Raghu & Sundaram. He became standing counsel for the Central Government in 1989 and continued with the post for six years till he was designated as a senior counsel in 1995 at the age of 38. After spending six years as a senior counsel in the Madras High Court, Sundaram moved to Delhi. He currently practices in the Supreme Court of India. Sundaram is a huge believer in the freedom of speech. One of his first cases on freedom of speech and expression, a landmark case, was S. Rangarajan vs P. Jagjivan Ram (judgment delivered on 30 March, 1989). He also successfully appeared for Khushwant Singh and secured the release of his book on the basis of freedom of speech which had been injuncted on the ground of it invading the privacy of a political luminary. One of his famous cases was Haldia Petrochemicals and Cyrus Mistry (oppression/mismanagement), BALCO, UOI vs Vedanta (enforcement of foreign awards).