Kolkata: Two teams of CBI on Thursday started conducting parallel raids and search operations at the residences of a Trinamool Congress confidant and a bureaucrat in connection with the multi-crore West Bengal recruitment case in state-run schools. The first team of CBI started the raid and search operations at the residence of Sukanta Acharya, the executive assistant of the former West Bengal education minister Partha Chatterjee at New Barrackpore in North 24 Parganas district.