[1] Born in Lunglei, Mizoram, Lalrempuia started to play football from the age of 11 for his local side Bazarveng FC.
[1] Eventually he was selected to join the Maomit High School under-14 side that was to compete in the Subroto Cup in 2010.
[1] Then at the age of only 16, Lalrempuia made his professional debut for Pune in the I-League on 20 April 2013 against Air India at the Balewadi Sports Complex.
On 28 September 2013, it was announced that Lalrempuia had been selected into the 23-man squad for the India U19 side during the 2014 AFC U-19 Championship qualifiers.
[4] He then made his international debut for the country at the U19 level in India's first match of qualifiers against Qatar U20 on 4 October 2013.