Dear Supriyo Santra,
I have just tested this example with a binary for Molpro 2018.2 and this worked fine. Which binary version are you using?
Alternatively, you could send the SHA1 number that is printed right at the beginning of the output file which shows
explicitly the commit state of your Molpro version.
I have the feeling, though, that the actual problem could be that your installation of Molpro does not read the
library files from the correct locations (maybe you have another Molpro installation on your computer?).
Make sure that this case is ruled out by following explicitly the installation instructions described on the web page:
Normally then everything should be fine, but you can test explicitly whether the main path is correct by
opening the 'molpro' script that you are using for execution and look for the setting of the
MOLPRO_PREFIX variable (is set right at the beginning of the script).
Best wishes,
Andreas