The best way is to sign a pre-nupital agreement where you clearly state that the wife will only get a certain (10 percent for example) of her husband's property in the event of a divorce. The other way out of a marriage is to set her up with someone furtively so that the court believes that she was being unfaithful. In Nepal I think a marriage is annuled if someone can prove that
thier wife had sex with someone else, in which case the wife isn't entitled to much, but the law may have changed in this so called New Nepal so idk