It's a great story, which is a pride of India. But due to the stupidity of Kangana Ranaut the story is changed to her taste which is worst.
The Director Krish who is a great storyteller always does research before starting the production, he is the director of Gautamiputra Shathakarni which was a untold story, which was presented to Indians.
I watched the movie as krish was the director but Kangana couldn't stay away from the great story and has spoiled it. Like any army/NAVI/Airforce related movie is authenticated by respecting personnel.
Historian should verify the authenticity of the movie and provide the feedback whether it's fiction based or fact based.