Under the Dissolution of Muslim Marriages Act, a woman can seek divorce from her husband:

Section 2(v) of the Dissolution of Muslim Marriages Act, 1939 entitles a wife to a decree where "he was impotent at the time of marriage and continues to be so". The two conditions are cumulative, so impotence at marriage alone, or impotence that arises later, is not enough. Under proviso (c), on the husband's application the court must give him one year to satisfy it that he has ceased to be impotent before passing a decree on this ground.