Twelve teams are in the fray.
Until recently, Bineesh Balan's family were of the belief that he was going out for practice.
The Kerala team’s preparatory camp, which was scheduled to be held in Thrissur between March 11 to April 10, has also been postponed.
The 20-member squad announced on Wednesday features seven Under-21 players.
Hailing from a poor family, Rahul was promised a job as well as house by the Kerala government considering his contributions to the state football team.
Chhetri recently became the second Indian footballer to play 100 international games after Baichung Bhutia.