Mamata Banerjee's government has been struggling with a series of disaster, most of them of its own making. Ms Banerjee made bewilderingly insensitive remarks on rapes reported recently in her state - the chief minister described them as political conspiracies spun by the Left. Today, Ms Banerjee was rebuked in court for mismanaging the investigation into the murders of two Left leaders, Pradeep Tah and Kamal Gain.