Imphal, March 7 -- Manipur Police have arrested three teachers for their alleged involvement in leaking question papers for Class X and XII examinations. Police said on Friday that Khangembam Arundas Singh , Assistant Professor YK College , Laishram Prabin Singh Biology teacher , Paradise English School, Thoubal and Sapam Shivdutta Singh , Biology teacher Paradise English School, Thoubal were apprehended for their involvement in the matter. Police said they were the main source of leaking the question paper. Incriminating items including mobile phones were seized from the arrested accused persons. Investigation of the case is in full swing and will continue to examine more evidence and witnesses to identify all responsible persons and esta...