It is not like any land exchange happened. Sure, some resources got divided but I wouldn't see it as settling. If you read analysis about management of big states, even now a lot of analysts believe some of the other big states should be split up.

> What I will say is that Sikhs I met in USA were not happy with say splitting Chandigarh.

Well, that's not representative of them, no? I have also met people who are not happy with that decision and also people who are indifferent to it.

> A lot of Punjabi-speaking Hindus "chose" Hindi for that to be true IIRC.

Not really, look at any language census from before as well in the districts that became the new state.

But the linguistic issue is not just limited to that state. Look at the northern Himalayan states and look at what has happened to their languages. Hindi has just subsumed their languages with its words and now most people speak Hindi only. This situation is made worse because of the necessity of English as a language, their own mother tongue kind of becomes third in the priority list.