"Mamta is a dangerous, populist demagogue: economically illiterate but politically astute - deadly combo! Mamta is a sad reflection on just how feudal our society and culture is - talk of human rights," reads Shaw's tweets.
"Yielding to Mamta n showing Trivedi the door is a very sad day for Indian politics - UPA Govt is in office but not in power. Mamta is behaving like a mad despot. Political leadership is in deficit with such irrational behaviour that can only harm the poor," tweeted Shaw from her personal Twitter account.
"Dinesh Trivedi has come out with a well thought out railway budget but shot down by a thoughtless interfering despotic Mamta Bannerji," added Shaw.
Meanwhile, Mamata faced stern criticism from another buisness tycoon - Rahul Bajaj who said, "It was a very bold budget and he is a brave man to take such a tough call of increasing fares after ten years. I would have wished to see him around as the Railways Minister. However, it is very unfortunate that his own party is now distancing him."