India, Feb. 29 -- LUCKNOW The Special Task Force (STF) expedited its probe into the U.P. police constable recruitment exam paper leak after the arrest of four suspects from Siddharthnagar by the local police on Wednesday, said police here on Thursday.

They said one of the arrested persons, Sanjay Kumar Gaur, was also involved in an online question paper leak when the examination for recruitment of 226 junior engineers (electrical) of the UP Power Corporation Limited (UPPCL) was held on February 11, 2018. The question papers then were leaked through special software (Ammy Admin) installed in computers at two of the examination centres in Lucknow, said cops.

SP (Siddharthnagar) Prachi Singh informed media that those arrested were identifi...