1. A wife deserting husband on her own will is not entitled to maintenance and the email sent by her father is a goof proof of it.
2. SO in the maintenance case you cna take this defence to avoid her maintenance.
3. For 498a Case you will have to first take bail which is not so difficult and once bail you will have to contest the case on merit.
4. You have a good case if you challenge the order of maintenance in higher court.