SSC chairman Ashim Khurana said that the commission has written a letter to the ministry of personnel asking for a CBI probe.
The SSC had already asked the Delhi police crime branch to look into the matter. It has cancelled one paper due to technical glitch but candidates claim this paper was leaked. The SSC is likely to reschedule this test for March 9.
Hundreds of students who took the exam have been protesting outside the SSC headquarters in CGO complex for the last one week demanding cancellation of the exam and a CBI investigation into the alleged leak.
The government had assured the students to take necessary steps so that their prospects are not compromised.