The season also featured the reserve sides of seven Indian Super League clubs, none of which were eligible to qualify for the final round.
[1] Real Kashmir won the title on 30 May 2018 and earned the promotion to 2018–19 I-League.
[2] They also made history becoming first team from state of Jammu & Kashmir to enter the first division of I-League[3] Just like the previous season, the I-League 2nd Division will feature a preliminary round and a final round.
At the end of the round, the team in first will earn promotion to the next division of Indian football.
Each club, excluding the Indian Super League reserve sides, can register three foreign players in their squad.