Sorry that story doesn't add up. The man hasn't been convicted of any crime of domestic abuse, the unsubstantiated accusations of abuse are just that. Not to mention being over the top... "ill-treat Anupriya who, unable to bear the torture, left him and went back to her parents". If that is really true then why are they concerned about him "cheating them after marriage and attempting to enter into wedlock with another"? They wouldn't care, just happy to be rid of him. If it was true, would they really feel conformable enough to go "brutally beaten" him? Maybe the wives' story is true. But maybe not. We haven't heard his side. And there is probably something there given the first wife testifies that his parents didn't buy her claims. Why weren't charges filed? The first wife did go to police, and enough time has passed for a second marriage to come and go, so apparently the police didn't buy the accusations either.
This could just as likely be about jealousy and revenge; which if so, we can reliably expect such accusations to be made. We can see in our country where many if not most divorces involve false accusations of this sort; its practically standard practice to make them in court. It's an easy story, everyone will believe you, and none blame you for the marriage failing. And remember this is in an Indian context where the men on average are brow-beaten beta's shoved into arranged marriages to ball busting women. For all we know they left because he couldn't be controlled. He is after all the one being assaulted here. Notice there are no specific allegations of hitting or them sustaining injuries; just a nebulous 'ill-treatment' which could be just about anything (or nothing).
We simply don't have enough information to know. And the information we have is questionable. The article has more info than the source it cites and the article itself is deceptive. And it talks about polygamy but this isn't poly: they left him, and not because he was going to take a second wife. It wasn't two wives giving a beating, it was a crowd with half defending and half attacking. Most of the damage seems to have come from males apparently holding rocks. He's not being attacked for the abuse, but for moving on (or maybe not giving them a cut of his assets in divorce?).
On second thought, this is probably about the money. Talking up the supposed abuse just shields them from accusations of gold-digging. Notice their main concern is "cheating them after marriage" and "beaten for searching a new bride by his 2 wives whom he hasn’t divorced yet". It sounds like he never legally divorced them before marrying the next. It's not about the abuse, but the money.
"Police said they intervened and took them inside the station where the two women lodged a formal complaint"
Why weren't they arrested for assault? That man was beat over the head with rocks!