Even though the question paper leak has been confirmed for only Maths and Physics examinations, papers of other subjects too have been leaked, according to investigation.

“We arrested three persons in connection with the racket on Thursday.

“The accused confessed that they sold papers of Biology, Maths and Physics,” S.V. Guled, Assistant Commissioner of Police (Women and Narcotics), Central Crime Branch (CCB), told The Hindu .

So far, the PU department has filed two complaints at Girinagar and Malleswaram police stations.