Anand, whose efforts to help underprivileged students get through the tough competitive examination were recognised world-wide, said the problem had been detected soon after the examination, but it was confirmed after the JEE uploaded the answers to three questions yesterday.
Talking to PTI, Anand said it was strange that instead of accepting the mistake, the authorities had once again resorted to average marking, which, he believed, would affect meritorious students adversely.
In respect of one question each in chemistry (Q No. 23) and mathematics (Q No. 60) of Paper 2, the JEE authorities wrote that all students would get zero mark for it.