Ahmedabad: The crucial re-test of the Common Admission Test (CAT) of Indian Institute of Management (IIM) began today (Feb 15, 204) amidst heavy security arrangements after it was called off in November last year when the CBI (Central Bureau of Investigation) busted a gang that allegedly leaked the question paper.

The exams, for which around 1.27 lakh students are appearing nationwide, are being held amidst "additional precautionary measures" at various centres in the city and began at the stroke of 11 am.

Raghunath Venkateshwaran, a CAT candidate said while scanning through his notes at the last hour that, "students have rumble in their tummy about how the question paper would be set after the leak. But we have put that aside and have prepared well."

The tests were cancelled for the first time in 28 years when the CBI unearthed the alleged paper leak racket and had arrested the kingpin, a doctor and others while seizing a set of question papers that were being sold at exorbitant rates.

One of the extra precautionary measures taken by the IIM for the re-test was changing the printing press where the question papers were set and had decided not to give the contract to the Indian Banking Services Personnel (IBPS), from where the alleged leak occurred.

CBI, during its probe gave a clean chit to faculty of all IIMs but is investigating the role of an IBPS press staffer for allegedly conniving with the kingpin of the racket Ranjit Singh.

CBI also unearthed that the gang used to allegedly leak questions papers of CAT and banking services among other competitive exams.