In reply to Rahulkumar:
Thank you for the reply, Rahul. I had tried it for even 100000, in int I was able to observe whereas for byte there is no overflow.
The attached file includes the byte file with 100000 simulation.
https://drive.google.com/open?id=1YpF0mlSqt4mCROPiIxxarDzocMZ6vSOp