Five persons were arrested from an apartment in Rohini area of New Delhi on Sunday in connection with the leak of the Punjab Medical Entrance Test (PMET) papers.
They have been remanded to police custody by a local court.
The five, believed to be members of an inter-state gang, were arrested by a team of Chandigarh Police, Inspector Jagbir Singh said.
They were identified as Jitender Kumar, coordinator for admissions in colleges in Delhi, Anil Behlia, a medical practitioner from Lucknow, Devinder Singh from Sirhind in Punjab, Kumar Ranjeet Singh from Nalanda in Bihar and share broker Rajender Kumar, he said.
Ten other people rounded up along with the five were released later as they were examination candidates and minors.
The accused used to charge between Rs 15 to Rs 18 lakh from the candidates to provide them the paper before the exam, the inspector told reporters.
Meanwhile, Baba Farid University of Health Sciences authorities said that the test was "smoothly" conducted as per schedule at 40 centres in the city.