CBSE Chairman Anita Karwal had received an e-mail at 1:39 am on Wednesday, about nine hours before the maths exam was to begin, with 12 images of handwritten questions.
More proof emerged on Friday that CBSE and police knew about potential leaks but did not do enough to spare about 22 lakh students the ordeal of retests.
CBSE Chairman Anita Karwal had received an e-mail at 1:39 am on Wednesday, about nine hours before the maths exam was to begin, with 12 images of handwritten questions.
The Board has shared this information with the police, which has now approached Google to track the person who sent the e-mail from devn532@gmail.com.
The sender of the e-mail had said that the maths paper was leaked on WhatsApp, and that it should be cancelled.
Also, one Chandan Gupta had approached the Delhi police after he received, via WhatsApp, nine maths questions at 10.40 pm on Tuesday itself.
About 5 lakh Class XII students wrote their economics paper on Monday and 17 lakh Class X students wrote their maths paper on Wednesday. As reported earlier, CBSE had received a complaint by fax at 4.22 pm on Friday.
An 'unknown source' said that a man named Vicky, who runs a coaching institute in West Delhi's Rajinder Nagar, was involved in leaks.
The complaint also named two schools in Rajinder Nagar for their involvement. Board handed over the fax complaint, WhatsApp messages and numbers to police on Saturday.
CBSE again received at 6 pm on Monday an unaddressed envelope containing four sheets of handwritten answers of the economics paper. WhatsApp numbers which received the answers were also mentioned.
The Class XII economics paper will now be re-conducted on April 25 across India. A decision on the Class X math exam will be taken in 15 days. If at all, a retest will happen in July, but only in Delhi & Haryana where leaks were restricted, the government said on Friday. No retest in overseas centres because there was no leak there, it said.
Gupta, a tutor in Outer Delhi's Madipur area, received the message on his phone from one of his students. Suspecting the paper could have been leaked, he called the police control room. Cops reached his residence and took him away for questioning.
Gupta's friend Bimal Mishra at whose residence he was present when he received the questions said, "He called me next morning and told me he had called up the police. He was let off on Wednesday," said Mishra. Police has seized Gupta's mobile phone.
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