[4] Singh's success at the Stars of Africa academy caught the attention of numerous clubs and in 2015 Swedish second-division side GAIS signed him.
[9] In July, the player confirmed that the Real Madrid B side and Swansea had previously been in contact with Khan, as his agent, over a potential transfer.
[30] Singh represented South Africa at the 2016 COSAFA Under-20 Championships and scored in nation's 8-0 win over Lesotho during the group stage.
[31] After winning all three of their group stage matches, South Africa progressed to the semi-final where they beat Angola 5-0, with Singh netting a hat-trick on the day.
Singh's tally of four goals for the tournament, coupled with two assists earned him the Golden Boot award and a spot in the CAF Best XI.
[39] Though an unused substitute in South Africa's 3–1 win over the former, he made his debut for the national team on 28 March against the latter, starting in a 0–0 draw.
[40] The following year he was named in Stuart Baxter's provisional squad for the 2018 COSAFA Cup before taking part in the 2019 edition where he scored his first international goals, against Botswana and Uganda respectively.
[41][42] Singh is of black South African and partial Indian descent, through his Punjabi Sikh grandfather, and was raised in the Noordgesig township in Soweto.