New Delhi: The convenor of the first computer-based common admission test, or CAT, said on Wednesday that the test may be extended to accommodate candidates who need to be retested, but said he is unaware of any discussions to scrap CAT 2009.

Test fix: Indian Institute of Management, Ahmedabad, director Samir Barua (left) and Satish Deodhar, convenor of CAT 2009. Ramesh Dave / Mint

“We may have to extend (the test), at least for a day," said Satish Deodhar, also a faculty member of the Indian Institute of Management, Ahmedabad, or IIM-A.

Technical snags and the closure of test rooms have affected roughly one in every five candidates who took the CAT, a qualifying exam for the seven IIMs, among other business schools. The test began on Saturday and is scheduled to close on 7 December, as per the current timetable. At least 240,000 have applied to sit for the high-stakes exam.

Prometric Testing Pvt. Ltd, the local arm of US-based Prometric Inc., mandated to conduct the test, said in a late evening statement on Tuesday it had provided new test dates to 62% of candidates affected by technical snags on Saturday and Sunday. It said close to 60,000 candidates wrote the exam successfully by the end of Day 3 on Monday.

Technical snags continued on Wednesday, Day 5 of the test, though the number of test rooms affected has come down, Deodhar said. He said five test rooms reported technical problems.

Deodhar denied media reports that IIM directors are considering scrapping the online test and replacing it with a pen-and-paper one.

Test preparation company Triumphant Institute of Management Education, or TIME, said the glitches and the time taken to rectify them have given some candidates an advantage over others.