What I understand from your narrations is that .....
A Hindu woman (who was previously married previoously and separared from her husband but thereisn't a legal divorce decree from courts .......... i.e. she is not a divorcee yet and her marriage still legally subsists) .....
got married to ...............................
A hindu man (who is a divorcee vide a legal decee of divorce. )
Above marriage is void ab initio ............. it has no standing in the eyes of law
In fact wife has committed bugamy which is an offence in hindu law.
Above cases are decides in max two-three hearings.
Since above marriage is void ab initio ..................... If hindu man in abive marries immediately to another woman (not currently married) it would be legal!!!! ........... that man doesn't even have to wait !!!!! But its better to wait for two-three hearing to sort out this above mess.
In above case wife can't even drag prolong the case .......... it is a crystal clear case ........................ she can't even enforce and injuction also if man declares that is is marrying to another woman legally !!!