Lalremsanga was the top scorer in the 2017-18 Mizoram Premier League. He is a product of Aizawl F.C. Academy and played a vital role in Aizawl FC’s achievement in the 2017–18 Youth League U18. He was also part of the National Under-17 probable squad for the 2017 FIFA U-17 World Cup. He was promoted to the senior squad for the 2018–19 season.
He made his professional debut for Aizawl against Shillong Lajong F.C. on October 28, 2018. He started and played the full match as Aizawl lost 2-1.