Justice S. N. Hussain started practice as a professional civil lawyer at the Patna High Court. He was appointed as Bihar Government Pleader in June 1999. Justice S. N. Hussain was known for his straightforward personality. He was associated with many social organisations and was known for his keen interest in promoting Urdu language. Justice S. N. Hussain was elevated to the bench as a judge of the Patna High Court in 2004. He was appointed to the National Green Tribunal as a Judicial Member on July 22, 2013. Passed away in harness on October 7, 2014.