Singh started playing for the French club HC Lyon in 1995 under coach Tony Fernandes who asked Singh to manage the club's junior side "realising his potential as coach". After a few years of coaching in France, he returned to India and worked in various coaching and managerial roles of national senior and junior teams in tournaments such as 2000 Summer Olympics, 2005 Men's Hockey Junior World Cup, 2006 Men's Hockey World Cup, 2006 Asian Games, 2009 Men's Hockey Asia Cup and 2010 Men's Hockey World Cup. He was awarded the Dronacharya Award in 2012.