During AIPMT 2015, answer keys were transmitted to candidates through electronic devices, surfacing first in Rohtak, Haryana, where police registered a case the same day and arrested dozens including two dentists and an MBBS student. With the network's reach across states unresolved and the alleged organiser absconding, the Supreme Court cancelled the entire exam on 15 June 2015 and ordered a re-test, held on 25 July 2015 for about 6.3 lakh candidates.