Rajiv Nayan Mishra, the "mastermind" behind the Uttar Pradesh police constable recruitment exam paper leak, has been arrested by the Special Task Force (STF) in Greater Noida. The accused has a history of involvement in paper leak cases and was found to have leaked the paper to 500 people in Gurgaon and 300 in Rewa. The UP government had cancelled the exam in February and ordered a retest after protests by aspirants. The UP Board Class 12th Result 2024 is also set to be declared today.