Menaka Gambhir had reached the Kolkata airport while going abroad for treatment when she was detained by officials from the Enforcement Directorate and immigration department. Abhishek Banerjee’s sister-in-law approached the Calcutta High Court after the incident and filed a contempt case West Bengal Coal Scam Case: Menaka Gambhir, the sister-in-law of Trinamool Congress national general secretary Abhishek Banerjee, has been …