SEBI has made changes to the pre-open call auction session for IPOs and relisted stocks to prevent manipulation. The session will now run from 9:00 a.m. to 10:00 a.m., with 45 minutes for placing, changing, or cancelling orders, 10 minutes for matching and confirming trades, and a 5-minute buffer period. Random closures will occur in the last 10 minutes of order entry. Enhanced monitoring and real-time transparency will be implemented to detect and report suspicious activities. These changes will take effect 90 days from the circular’s issue date. 

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