CBSE paper leak: 30 persons questioned but no 'main suspect' yet. Here's the latest from the probe

The Delhi Police has questioned 30 persons in relation to the CBSE board exam paper leaks that have affected lakhs of students. However, the police are yet to determine a main suspect in the matter.

A private tutor named Vicky who was detained on Thursday in connection with the leak is likely to be questioned further on Friday. As per sources, the police also conducted late-night inquiries on three CBSE officials, though nothing related to a money transaction has emerged thus far.

Republic TV has also learnt that the Delhi Police has seized more than a dozen mobile phones to identify and establish a WhatsApp trail. As per a probe briefing on Thursday, the leaked papers had been circulated over the messenger service. The mobile phones in question belong to students and teachers who have been questioned.

On Thursday evening, the Delhi Police had revealed that it had questioned 25 persons, of which 18 were students (including 5 from college), 5 were tutors and 2 private persons. It also confirmed that the CBSE had received a tip-off regarding the leaks before the concerned exams were conducted.

On Wednesday, shortly after the conclusion of the Class X Mathematics exam, the CBSE announced that the paper, as well as the Class XII Economics exam from two days earlier, had likely been compromised. The CBSE said that both the exams would be re-conducted.

Anguished students and parents protested in New Delhi on Thursday and revealed with some degree of confidence that many more papers had been leaked. Union HRD minister Prakash Javadekar refused to blame the CBSE, even though calls for the board's chief Anita Karwal's ouster grew after confirmation of the tip-off was received. Karwal didn't help matters by issuing a wholly inadequate statement over the matter, telling students to not worry and that the re-exam dates would be announced soon.

The dates for the two re-exams are to be announced on Friday, the CBSE later confirmed. Students' protests are likely to continue.