As you haven't told what the script load_data_to_db.pl is supposed to be doing, nor posted its code, nor said how it fails, we can only make guesses what the issue might be.  Different environment, different current working directory, or different user, maybe?

In reply to Re^3: A doubt about invoking perl script through other perl script by almut
in thread A doubt about invoking perl script through other perl script by siddheshsawant

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