Legally one option is left.
498a is not being used is a right thing to do as it is used for revenge purpose and not for justice.
DV, you have to prove that it occured. Though this pain for your husband, he will fight it with time delaying tactics and proof will be bought. Indian marital life is hardly consumption babsis, where few records exists of abuse(unless you have recording of abuse). Most of the time it will be heresy and this will drag. Morover proving guilty is not punishment.
Maintainance is your best case. You can plead your case and for all the judgement thats being passed where there is no money(against wife) cases are rare and judge does get influenced by facts. Put across cost of living, sacrifises and so on. Corrobarate same. Focus on getting this maintainance decree in your favour. Even if he doesn't pay . But you have to win. Matter of your earning and his earning potential is matter of intrepretation for the sum to be assured. But not for winning decree. If you're sensible ask for small amount and court presents it. Then slowly ask for increase in the money.
Contest Divorce. Keep reparting you need husband..blahblah..blah... Never let a court date go away. You can fight this in person...Deny everything said. Make up lovely married life you had... Say he is under spell....create scene..bWatch all comedy serials..Make judge laugh..and deny him the Divorce..If you win...Automatically you can reapply for maintainance.
Any other discussion is sharing human expereince. More drama and less results.
Find a part time job as you may need to fund all these... Going through lawyer bonafide may have its own repercussion.. Lawyer may join hands with your husband..
Justice is relative aspect. Not blind. But deaf.