संपूर्ण क्रान्ति है तो जहां है

Much of the information comes from interactions with veteran railfans and old newspaper clippings and my own experience. And most of the information has been gathered over a long period of time, so I cannot provide documentation for every point I mentioned. The book I referred to in my original post covers some of the points. It is copyrighted however, and I do not have the permission to share it. The link is available, so interested readers can send an access request to Google for getting the entire copy.
Feel free to verify the dates and update the timeline.

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