In the scene where Abhishek Bachan is addressing his first AGM in a "pandal", he is seen loosening his tie, but in the next scene his tie is fully knotted. Then again in the next scene, his tie changes length and becomes much shorter.
The scenes in Turkey depict the 1950s, with locals who wear fez (the red hat). In reality, at those times, there would not be anyone wearing a fez in Turkey. The country went through modernizing revolutions in 1920s & 30s, during which fez was replaced by European hats.