 From 1992 to 2002 he was one of the Junior Counsel to the Crown (from 2000 on the A Panel).From 1997 to 2002 Singh was Additional Junior Counsel to the Inland Revenue.Singh, Booth and 5 other tenants from 4–5 Gray's Inn Square, together with 16 barristers from other chambers, set up Matrix Chambers in 2000.