Marriage has been consummated.... At this point if Anandi is thrown out the issue will certainly go before panchayat and the family will be dishonored, especially because Bhairon will certainly support Anandi.
It is not Jagya's house to throw anyone out of.... DS can certainly throw Anandi out, but Bhairon and family would probably go with her, so she can't do that....
Jagya has been behaving abominably with Anandi, so if anyone needs to be punished its him....
If Jagya has the guts he can leave his family but he would have to support himself, and from what has been shown of him, he won't do that....