This book tries to put together facts and evidences objectively, rationally and in a non partisan way. It makes a formidable and convincing case of so called "Gumnami Baba" being non other than Netaji SCB.
One request to those who want to read it. Read it rationally and question the facts and arguments put forth by the authors. You can ask your questions directly to the authors on twitter. They also give answers to random people, based on merit of questions. They also visit various places to give presentations.
It would be more appropriate to constructively approach the case. People here are giving banal statements like "it can't be him", "he can't live like this", "it's an insult to his legacy to suggest this" etc. Rather than doing this they should critically analyse the books and counter the authors on factual grounds.
Although most of the people have no interest in the topic, if you have then you are exceptional. Do read the book and evaluate its arguments and facts. It will aid in making the case stronger rather than weakening it. Because, it was him is now unofficially established.