What happened
Paper leaked via doctored computer monitors giving remote access to solvers during the 3 June 2023 test for 3,055 nursing-officer posts; CBI arrested the alleged mastermind plus four others and booked a Mohali institute.
What was done
Arrests / FIR
Official probe — CBI/SIT
Source
Primary reference The Tribune ↗ https://www.tribuneindia.com/news/delhi/cbi-arrests-mastermind-of-aiims-nursing-officer-recruitment-paper-leak-519366This entry summarises the linked report. Where the summary and the source disagree, the source wins — and please tell us.