Mani Rathnam has changed a few things from the book.
Senthan Amuthan being the real Maduranthakar in the book , having that twist in the movie at the end would have confused the viewers if they have not read the book.
So, I am ok with that deviation Mani did.
I am also ok with the fact he brought in some action at the end, which fits into a Movie style rather than how the book ended.
I think the scenes between VanthiaThevan and Kundavai and between Karikalan and Nandini were filmed very well.
Main actors have done a splendid job.
All in all I am more than satisfied with the movie.
It is a proud moment for the Tamils all over the world.