Hello Mahesh Kannan S
I would recommend you to allow the simulation in Discovery Live to run for a few seconds before comparing the results. You can see the duration for which the simulation has run above the contour table as shown below.
As the simulation runs for over 0.4 seconds, I get more comparable results. (Approx~370.5 Pa) 
I hope this solution is clear.
You are navigating away from the AIS Discovery experience