Railway Minister Dinesh Trivedi was sacked hours after he defied his leader Mamata Banerjee and his party, the Trinamool Congress, by raising passenger fares in the Railway Budget 2012-13. Banerjee asked the Prime Minister’s Office to replace Trivedi with Mukul Roy, a Rajya Sabha MP. “Yes, I have written to the Prime Minister, seeking his replacement with Mukul Roy, another Union minister,” Banerjee told the Press Trust of India.