Ex-spouse claiminig maintenance after divorce

1. Not at all. The divorce decree settles this issue unless no alimony was paid.

So, does it mean that per Indian Law a female spouse is allowed to escape from any punishment  for infidelity and extra-marital and yet allowed to claim maintenance?

No, no alimony was awarded - since in retaliation to Divorce filed by opponent, she had filed DV for maintenance. She happens to be gainfully employed though

A decree of divorce obtained by a person, either ex-parte or after effective contest, would not absolve him of the liability to pay monthly maintenance amount to his wife if such amount had been awarded by a judicial magistrate by invoking Section 125 of the Code of Criminal Procedure, the Madras High Court Bench here has held.

That is clear Ramachary sir.

My question  is different and  let me rephrase it -  is an ex-wife entitled for maintenance if either of below -

a) she has been  involved in infidelity and extra marital affairs (divorce was awarded post  contest on  the basis of this)

b) she is gainfully employed to be able to maintain herself