What are the trading hours for a particular scrip on its day of “Listing”?

What are the trading hours for a particular scrip on its day of “Listing”?

Pursuant to the SEBI circular exchanges have decided to extend the Call Auction mechanism to IPO's (New and Relisted Scrips) on the first day of trading/re-commencement. Call Auction in Pre Open session for IPOs (New listing) and Re-listed Scrips is a mechanism to determine the Opening Price based on aggregate supply and demand for the underlying on the first day of trading/re-commencement of trading. The session would commence for 60 minutes between 09:00 AM and 10:00 AM out of which order placement in the Pre Open session would be allowed for the first 45 minutes only. The rest of the time would be utilized for exchange related functions as illustrated in the indicative schedule mentioned below: