Hundreds of candidates took the retest of the All India Pre Medical Entrance Test at select centres in the region under unprecedented security on Saturday.Despite instructions from the Central Board of Security Education (CBSE) not to wear earrings, watches, rings, belts and wristbands, candidates at various AIPMT centres did not adhere to the rules, inviting inconvenience. Candidates could be seen removing rings, kada (a Sikh article of faith), moulis (threads worn during Hindu rituals), belts and even hair bands. The authorities were firm and no accessories were allowed despite a few parents arguing and citing religious reasons.Candidates were checked by metal detectors thrice at centres.