When he was the chairman of the Parliamentary Standing Committee on Railways, CPI(M)’s Basudeb Acharya enjoyed a good rapport with the senior officials in Rail Bhawan. But everything seems to have changed after Mamata Banerjee took over as the railway minister. Not many officials are now keen to communicate with the CPI(M) veteran. On most occasions when Acharya’s office tries to contact Railway Board members and other officers, the stock reply is ‘We’ll call you back’. Needless to say, the calls are not returned.