You "will be" allowed to go back home before re-paying loan. The point is "whether your name is in black list or not" if your EMIs are going fine, you can go even with termination, continue paying from the country you will be in. Airport gets only list of blacklisted customers.
So happy journey and all the lucks for returning the money.
Don't let the thought play with you, that once you are out of the country, you can now avoid repayment.
The bank when blacklist someone, they hire agents to reach you in the country you live in.