The 27-year-old left-back from Manipur has signed a three-year extension deal.
KSEB will take on Royal Bosco in the first semifinal at Kochi on Monday. Gokulam Kerala and Kerala United will clash in the second semifinal at Thrissur on the same day.
The AIFF Player Status Committee stated that the transfer was valid pertaining to all the terms and conditions and that Naorem was completely fit to play at the time of transfer to ATK Mohun Bagan.
The team management needs to return to the drawing board and engage in introspection.
Blasters ended their campaign in 10th place with 17 points.
The management of the Kochi-based franchise need to understand the passion surrounding the sport and develop a strategic plan and a long-term vision for the club's success.
Chennaiyin FC finished the season with 20 points from as many games.
There are clear indications that the Spaniard was fed up with the current situation at the club and had made up his mind to leave.
Blasters suffered a humiliating 4-0 defeat at the hands of Hyderabad FC on Tuesday night in Goa to bow out of the play-offs race.
The ISL is largely viewed as a retirement destination for ageing stars and, going by their performance in many matches, both Kone and Costa appeared to be enjoying a vacation in India.