Sources said the agency has recovered a note sheet in which some amounts have been scribbled, which are likely payments received from the suspected beneficiaries.
They, however, said the analysis is still at primary stage and will take some time before any comment can be made about its veracity.
They said the agency has also found admit cards of the alleged beneficiaries of the alleged irregularities in the conduct of examination by the Madhya Pradesh Professional Examination Board also known as Vyapam.
The search operation, which comprised of over 100 officials, spanned across 40 locations led to the recovery of several incriminating information which include SIM cards believed to be used by the alleged middlemen in the scam, election cards of the beneficiary candidates, driving licenses, CDs etc.
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The sources said this material will help them decipher the complex web of agents and mastermind which was at play in securing admission and appointment in government services through Vyapam, but cautioned that it will need further corroboration through legally admissible forensic evidence.
The searches in connection with alleged irregularities in Vyapam spanned across Bhopal, Indore, Ujjain, Rewa, Jabalpur, Lucknow and Allahabad among other cities, CBI sources said.
The agency has registered over 112 cases in connection with various aspects of Vyapam scam.
CBI spokesperson had said searches were carried out at the premises of the accused persons who had played a crucial role in perpetrating or orchestrating the scam.