India, Sept. 30 -- The Odisha Police Recruitment Board on Tuesday postponed the Sub-Inspector (SI) written examination scheduled for October 5 and 6, after a late-night police operation in Andhra Pradesh exposed what officials are calling an organised malpractice racket.

The decision came hours after the Berhampur police intercepted three buses near Srikakulam on Monday night, detaining over 150 aspirants suspected of being coached with advance access to the question papers for the SI entrance exam, officials said, adding that at least 120 of those held were from Andhra Pradesh.

Senior officials familiar with the matter said that the detained candidates were on their way to Hyderabad, where a "special coaching camp" had allegedly been a...