Hindu married man wants to marry hindu unmarried woman with

Firstly if both ladies have no objection residing with each other with a common husband you need not to convert to another religion because by Gamma complaint is to be filed by either of the wife come and by Else. but this always leads to a hanging sword on head of the husband of been prosecuted choice is yours. No legality involved unless and until wife goes for the prosecution.
The second option you are taking is about changing your religion if either of the wife still thinks prosecute then you are change of religion will not save the husband as there is a specific judgement on this issue that a man cannot change his religion only because of the just fact that he want to marry again so in that case you are not saved by changing religion just the thing on the lighter side of your query is always be happy with your wife and do not let them to file a complaint police against you thank you