Every petition of divorce shall be filed only after the completion of one year from the date of marriage. Under certain circumstances even before the completion of one year the petition shall be filed if the court finds that there is no chance for thw spouse to continue with the marriage and it is difficult.
As your wife has levelled certain defects on you she has to prove it at the time of trial. It is better you get a certificate of potency from the government medical officers for proving your potency and to negate her charges on you pertaining to s*xual competency.