Partisanship vs Individualism

The recent sack of Jaswant Singh on his contentious book has raised a number of questions in my mind. Leave aside for a moment, the contents of the book and the disgraceful manner in which he has been expelled from the party. The point is whether we enjoy the freedom of speech and expression [Art 19(1)] in our country any more?
If yes, then why such a veteran leader was sacked? And if no, then probably the time has come when we should remove this façade of being the largest democracy in the world. After all, we should not profess something that we no longer enjoy at our discretion.

Although I admit to the fact that a party which since long hinges on the hindutva ideology and which has unfailingly used it as a leverage cannot stand one of its oldest party members to go against its beliefs and doctrines. But then, does he not enjoy the right to express what he feels? Can he not keep his professional and personal life wide apart (assuming that writing a book is solely a personal act)? Does he always have to go by what his party says? If such is the case then I believe it is far better to be an individual and to be oneself, to feel oneself than to abide by what the party says.

This issue has again brought to the surface all those questions, which for long lingered into my mind and are yet not answered. One of them is:
Who was responsible for the partition of our country? Some historians are of the opinion that it was Jinaah who went in support for the “Two Nation Theory” and was adamant to make a separate nation. While some believe that it was Nehru who could not see anyone else but him to take the charge of the nation. When Jinnah expressed his desire to be the Prime Minister, Nehru did not agree to it who was also supported by Lord Mountbatten and this finally went to his advantage. Some people go even to the extent of saying that Lord Mountbatten decision’s to favour Nehru was largely influenced by Lady Mountbatten, with whom Nehru had some implicit relation.

I know I’ll never be able to find the answers to these questions (especially so long as I be dependent on the books authored by Indian historians). But still if anyone has any knowledge pertaining to this, kindly enlighten me.