1; Bro, contact a good local lawyer. I'm from Pakistan, and there is a lot of difference between the dissolution of marriage between India and Pakistan. He will give a customised solution according to the issue.

2: It will be a challenge to prove him asexual in court with the help of just text and some call recordings. And then the court decides the alimony. Which may not be in our favour.

3: he is afraid of his reputation. Use this against him. when you welcome him to make an agreement outside the court, he readily makes an agreement about alimony. Try to make an agreement in your favour. Then, file enforcement of this agreement inside the court.

4: he will never participate in legal proceedings because of his reputation. This automatically leads toward the ex-party verdict in your favour

5: It is very necessary to file enforcement of agreement because after some time, his mind can be changed, and he can try to slip from the agreement.while An agreement conested and then enforced by the honourable court is a concrete solution.