Back in 2009, when Left Front CM Buddhadeb Bhattacharjee laid the foundation stone of the metro project, Mamata Banerjee tried to create impediments to stall the corridor’s construction.

Back in 2009, when Left Front CM Buddhadeb Bhattacharjee laid the foundation stone of the metro project, Mamata Banerjee tried to create impediments to stall the corridor’s construction.