The CBI, in its first charge sheet in the multi-crore West Bengal School Service Commission (WBSSC) scam, has pinpointed former West Bengal education minister Partha Chatterjee as the principal mastermind behind the conspiracy.

According to CBI sources, the first step of the controversy was to identify those to be illegally recruited against monetary consideration as well identifying those eligible candidates whose names would be chucked out from the merit list to accommodate the ineligible ones. The second step of controversy was how to increase the marks of the ineligible candidates to accommodate them in the merit list.