FIBA Asia
Singh made his debut for the Indian national team in 2011 at the FIBA Asia Championship. He has since competed at the 2013 FIBA Asia Championship, 2014 FIBA Asia Cup, 2015 FIBA Asia Championship, 2016 FIBA Asia Challenge, 2016 FIBA Asia Champions Cup and 2017 FIBA Asia Cup. At the 2016 FIBA Asia Challenge in Iran, Singh averaged 18 points and 10 rebounds per game.