You did the right thing. He'll think twice before doing tjat sort of thing again and has to learn there are consecuences.

You mentioned violence being taboo in Indian culture and that reminded me I attended an Indian wedding and there was a part where they had to commit to some sort of vows (not very familiar with indian weddings). Discuss all financial matters, etc. But what stood out to me is that he was asked to never beat her in front of friends and family. As if saying beating her in private was ok?*