Limitation of actions
21. No suit for the declaration of a marriage as void shall be entertained unless instituted within one year from the date from which the party seeking to avoid the marriage has become aware of the ground for the avoidance, or, if the ground is under paragraph (f) of section 20, from the withdrawal of the threats as in such paragraph set out: Provided that, in any case, no such suit shall be entertained after a lapse of five years from the date of the marriage.