IMPHAL, May 25 The Manipur Amateur Karate Do Association (MAKA) is organising a trial selection on May 26 at the main dojo of Zendakai Karate, Yairipok Bishnunaha from 8 am onwards in connection with the Sub-Junior and Senior National Karate Championship. A press release of the association informed all assigned referees, judges and participating players to report at the trial venue by 7.30 am. All participants much produce age proof certificates at the venue and senior players must be KAI graded, the release further said.