if the male is unable to consummate the marriage due to impotence, this is mental cruelty to the wife and she has the right to have the marriage annulled. In cases of impotence, courts are now allowing annulment and also deeming it harsh.
Sample Mock Tests for Practice
THE HINDU ADOPTION AND MAINTENANCE ACT, 1956 (PAPER 01 Q. NO. 1 TO 30)