I'm aware of the story but interested in your interpretation.
Very simply put, they had agreed that Bengal should remain undivided, and should form a third Dominion. Jinnah, exasperated at this very late development, told them to do what they wanted. At this point of time, Shyama Prasad Mukherjee, actively involved in politics, and a former member of a coalition government along with the Krishak Praja Party of Sher-e-Bangal Fazlul Huq Sahib, got to know of these not very secret talks and discussions and raised an alarm.
Nehru and Patel shot down any such plan,
The demographics of western Bengal and the rest of Bengal was curiously different. In western Bengal, there was a strong set of mid-level social figures, the Mahishyas, or Kaivartas, who had for a brief period, between the mediaeval Pala and Sen kingdoms, held power on their own. These farmers and fishermen were accustomed to dominate the countryside, in spite of the Zamindari structure imposed artificially on top by the British. As a result, they, with the Hindu gentry that were concentrated in the towns in the west as they were in the east, were able to prove themselves to be in the majority. A decision was taken to poll the elected representatives (there was no referendum), and go by their voting.
And that is how Bengal was partitioned.
The Sheikh Abdullah loyalists strong-armed the rest of the valley into submission.
What strong-arming was there? Not even a single act of violence occurred. It was only in Muzaffarabad that the National Conference reverted to the older communal name of the Muslim Conference.
On the other hand, Maqbool Sherwani diverted the tribals for two days in Baramula, and paid a vicious price; he was crucified.
There was no violence in the Vale, and the strong-arm tactics are extrapolations by Pakistani commentators unreconciled to the idea that any single Kashmiri might not want to yearn for Pakistan.
They didn't need to be under their rule to be alienated by their policies against Muslims. Word got around. Muslim Punjabis led a sustained public campaign against Dogra rule in Kashmir for decades based on the word of exile Kashmiris.
Please look it up.
Muslim Punjabis were almost totally absent in Gilgit, and the first one was deputed after the mutiny, empowered to take charge in the name of Pakistan.