He Passed his matriculation examination from H.E. School, Dhanbad and received his Bachelor of Laws (B.L) Degree from Chota Nagpur Law College in 1967. Justice Joined the Dhanbad District Court in 1968 after which he shifted his practice to Ranchi upon constitution of the Permanent Bench of the Patna High Court in 1976. He was designated as Senior Advocate by the Patna High Court. Subsequently, he was appointed as the first Government Advocate of the Ranchi Bench of the Patna High Court and was elevated to the Bench of Patna High Court on 9 March 1987. He was transferred to the Calcutta High Court on 11 May 1994. He has served as the Chief Justice of the High Courts of Calcutta, Andhra Pradesh and Delhi. He was elevated as a Judge of the Supreme Court of India on 3 October 2002 and retired on 8 August 2009. TDSAT Chairman  On 3 November 2009, after retirement from the Supreme Court, Justice S. B. Sinha was appointed as the Chairman of the Telecom Disputes Settlement and Appellate Tribunal (TDSAT) succeeding Justice Arun Kumar who retired in September, 2009. Death  Justice Sinha died on 19 March 2019 at the age of 74 after brief illness in New Delhi.
They Passed their matriculation examination from H.E. School, Dhanbad and received their Bachelor of Laws (B.L) Degree from Chota Nagpur Law College in 1967. Justice Joined the Dhanbad District Court in 1968 after which they shifted their practice to Ranchi upon constitution of the Permanent Bench of the Patna High Court in 1976. They were designated as Senior Advocate by the Patna High Court. Subsequently, they were appointed as the first Government Advocate of the Ranchi Bench of the Patna High Court and was elevated to the Bench of Patna High Court on 9 March 1987. They were transferred to the Calcutta High Court on 11 May 1994. He has served as the Chief Justice of the High Courts of Calcutta, Andhra Pradesh and Delhi. He was elevated as a Judge of the Supreme Court of India on 3 October 2002 and retired on 8 August 2009. TDSAT Chairman
 On 3 November 2009, after retirement from the Supreme Court, Justice S. B. Sinha was appointed as the Chairman of the Telecom Disputes Settlement and Appellate Tribunal (TDSAT) succeeding Justice Arun Kumar who retired in September, 2009. Death 
Justice Sinha died on 19 March 2019 at the age of 74 after brief illness in New Delhi.