An honest liberal argument can be -
Hey...we got lucky in 1947 in getting Kashmir
But the Muslims in the state don't feel comfortable being Indian
We can't undo what happened. So let's grant them autonomy
There is instead talk of kashmIriyat - a bogus notion
There is also talk of Indian "brand" - again v silly
It does not accept two nation theory in its foundation
Cites the presence of 200 MM muslims in India as a refutation of the theory
And regards Indian Kashmir too as integral to proving the theory wrong
There is the more radical Hindu-Right position (found on the fringes of twitter) which is more aggressive. Talks of eventual Ghar-wapsi of all Kashmiri Muslims or all Indian Muslims
But that's not the BJP line
Not through covert, vague language as observed in the above tweet