The question paper of Friday's Dhaka University D unit admission test was leaked in the early hours of the day.
Around 2:30am, a number of candidates got an e-mail that contained questions of the English portion of the test.
Around an hour before the exam, they got a text message that contained the answers. Prothom Alo has managed to get hold of copies of the e-mail and the SMS and the questions circulated in the e-mail and Friday's exam do match.
However, DU proctor M Amzad Ali refuted the allegations. "No way the question paper could get leaked," he said.
As many as 15 candidates were expelled for adopting different unfair means, he added.
Crime Investigation Department (CID) has said a number of candidates used digital devices to cash in on the question paper leak. To this end, they will hold a briefing in the afternoon.