Hi Punit,
Assign Production Work Center in the Equipment Master.
Make the settings for the capacity availability check settings with the combination of Production Order type and Plant. Create a maintenance order on the respective equipment. Now try to create the Production Order with the work center on the same date. The date of operation of the work center assigned should have the same date as the Maintenance Order date. This will work fine.
Please check and revert.
Regards,
Shivaji