23. Disqualifications.

(a) he is of unsound mind and stands so declared by a competent court;
(b) he is an undischarged insolvent;
(c) he has been convicted of any offence involving moral turpitude;
(d) he is conducting or engaging himself in private coaching with or without pecuniary gain; or
(e) he has been punished for indulging in or promoting unfair practice in the conduct of any examination, in any form, anywhere.