Hi @Mahesh,
As @jpeyron said in the post marked as accepted solution, the Zynq processing system will be configured with the board presets when you first add the Zynq processing system IP core to the block design and run the block automation task from the green message that appears! Just remember to keep the Apply Board Preset option checked as shown in he picture. So this means if you are using the pre-built block design from the example project, a possible solution can be to remove the existing Zynq processing system block and adding a new one!