They were arrested after a lead obtained during the interrogation of fake candidates arrested at the Kempe Gowda International Airport last week, police said.
The scam came to light last week when Central Industrial Security Force personnel at the airport detained 28 students after details on their identity cards did not match their claims of age and name. On further interrogation, they told them about the scam, police said.
Explaining the modus operandi of the accused, police said the impostor students would write the under-graduate entrance test for medical courses and score good marks to secure seats at reputed colleges in and around the state. They would get admission by paying the fee, but would withdraw at the last hour to help the management make use of the vacant seat.
Police said that they suspected the entrance test was manipulated to facilitate admission of undeserving candidates to medical courses for higher amount of money.
COMEDK sources said the consortium was extending "cooperation" to police.