CBSE conducts the JEE (mains) for admission to the NITs, IITs and other centrally-funded institutes. The board had uploaded the answers on April 28, of all the questions that were asked in the offline and online exams held earlier this month.
The students were allowed to challenge the answers on payment of `1,000 for each question, with refund guaranteed for a correct challenge.
A Physics question of the online exam on April 19 had been dropped after experts found that none of the options in the answers were correct.
Meanwhile, some parents met the chairperson of the Delhi Commission for Protection of Childs Rights asking him to look into the matter.
“I have sent a letter to CBSE chairman saying this is a serious matter and should be looked into,” Arun Mathur, chairperson of DCPCR said.
Earlier, the board had uploaded the OMR sheets and the computerised responses of the students so that they could challenge the board if any discrepancy was found. More than 280 challenges have been filed.