Trinamool Congress (TMC) MP and general secretary Abhishek Banerjee on Saturday arrived at the Central Bureau of Investigation's (CBI) office in Kolkata for questioning in Kuntal Ghosh letter case. CBI on Friday summoned Banerjee to appear before the agency on Saturday in the multi-crore recruitment scam in West Bengal schools. The CBI summon came after the Calcutta High Court on Thursday allowed the central agencies to quiz the TMC leader in the recruitment scam in West Bengal schools.