A method and system for controlling procurement systems where tender review process is by selecting external/internal reviewers randomly and by managing at least three levels of reviews. The method comprises collecting a tender information by an application server; collecting the bids; and collecting reviews at each level and transmitting the reviews to the next-level reviewers. The reviewers are selected from a reviewer register for each review level. The first-level reviews are transmitted or kept confidential as per entity preference to the second-level reviewer devices and the second-level reviews are collected within a limit period of time and simultaneously. The second-level reviews are collected from the second-level reviewers and transmitted to the third-level reviewers. The system may analyse the collected reviews and select the winner of the tender based on reviews collected. By option, the system can also hide bidders' information such names at a certain level of analysis/analysts depending on the materiality and available resources.