Born in Mizoram, Renthlei began his career in the Mizoram Premier League(MPL) with Chhinga Veng. Renthlei has also represented Mizoram in the Santosh Trophy in 2017. In December 2017, he helped Chhinga Veng become the 2017–18 MPL champions after they defeated Aizawl FC 1-0 in the final. After his performances in the MPL, he was signed on loan by Aizawl FC. He made his continental debut with Aizawl during their AFC Champions League qualifier match against Iranian side Zob Ahan Esfahan, a match which Aizawl lost 3-1. Ahead of Hero ISL 2018-19, Laldinliana joins Chennaiyin on a free transfer from Mizoram Premier League (MPL) side Chhinga Veng.