Even for maintenance u/s 125 cr.P.C., she has to establish her allegations that she was neglected to be maintained by her husband and failed in his martial obligations, her allegations namely driving her out of the matrimonial house by the husband can be challenged stating that she has abandoned her matrimonial home on her own for the reasons best known to her and that the husband is ready even now to take her back and maintain her properly with due care and love but it is she who is reluctant about it. You have to engage a prudent lawyer to defend your case properly and challenge her allegations to get justice if truth is in your side.