20. A marriage may be declared void where the party suing for such declaration satisfies the Court that-
(a)at the date of the marriage, his or her judgment was affected by reason of some transitory cause;
(b) he or she entered upon the marriage ceremony under a bona fide mistake in that he or she did not in fact intend to contract a marriage or to marry that particular person;
(c) he or she was induced to contract the marriage under a bona fide mistake and belief that the other party possessed certain qualities, the absence of which, in the opinion of the Court, would make life in common impossible or intolerable;
(d) he or she has been wilfully deceived by the other party or by a third person as to the other party's moral character and had thereby been induced to contract the marriage;
(e)the other party suffers from a disease which gravely endangers the health of the party suing for the declaration or of any children of the marriage and such disease had been concealed from the party suing for such declaration;
(f) he or she was induced to contract the marriage by threats of a grave and imminent danger to his or her own life or health or honour or the life, health or honour of a person closely related to such party.