The action to nullify the specific PMTs these students had appeared for is likely to be taken by next week, sources said, adding, the MPPEB had asked for a list of these students from the Special Task Force (STF) of state police who is handling the investigations into the alleged scam.
Around 100 out of these 200 students had completed PMT counselling and have gained admissions in various private and government medical colleges.
STF said that alleged scamsters Tarang Sharma and Santosh Gupta have confessed to having taken Rs 30 lakh each from five job aspirants to help them clear the MPPEB exam for Milk Federation.
The duo allegedly worked in collusion with MPPEB's Principal System Consultant Nitin Mahindra who is in jail, according to STF.
Opposition Congress had been demanding a CBI probe into the "scam".