"TO BE DECIDED AFRESH ON MERITS "
MEANS:-
RE-TRIAL:-
FRESH HEARING BY TRIAL COURT/LOWER COURT/ ORIGINAL COURT/ COMPETENT AUTHORITY
Simple meaning is re-trial before the trial Court/ lower court upon hearing both the parties again on evidence adduced by both the parties.
In my opinion you have good case.
Other side parties may challenge the validity and authenticity of NOC and Affidavit, let them do it as per precedence and provisions of law.
Proving NOC and Affidavit are not valid would be definitely responsibilities of your opponents.
You would win again based on your evidence adduced by you earlier before the court / competent authorities which are genuine and authentic as claimed by you.