Career
Royal Wahingdoh
Reagan Singh started his senior career at Royal Wahingdoh 2012 and was part of their time in the I-League 2nd Division from the same year and participated in the Shillong Premier League in 2012, 2013, and 2014 for Royal Wahingdoh. He even played for the side in the I-League 2nd Division. He started his first game since Royal Wahingdoh"s promotion to the I-League on 28 December 2014 in the Federation Cup against Mumbai.
This also saw him rewarded with a callup to the India for the World Cup Qualifiers.
NorthEast United (loan)
In July 2015, Reagan was drafted to play for NorthEast United in the 2015 Indian Super League. Salgaocar
On 7 January 2016, Salgaocar confirmed that they have signed Royal Wahingdoh"s star side back Reagan singh for 1 year.
On 28 January, Reagan made his I-league debut against Shillong Lajong F.C.