India, Oct. 17 -- The Odisha CID on Friday said four persons have been arrested in connection with the leak of the question paper in the police sub-inspector recruitment exam, exposing an elaborate racket that charged aspirants between Rs.20 lakh and Rs.25 lakh for access to the leaked papers.

The racket came to light on September 30 when Odisha Police stopped three air-conditioned buses carrying 117 people near the Odisha-Andhra Pradesh border who were allegedly heading to Hyderabad to obtain leaked copies of the sub-inspector examination scheduled for days later.

Since then, 123 people, including 114 candidates, have been arrested.

On Thursday, CID sleuths nabbed Muna Mohanty, who allegedly ran a syndicate with Srikanta Maharana alia...