Hi all,
issue has been resolved.
in GLOBAL/security/data/icm_filter_rules.txt
had passed comment to the rule
RegIRedirectUrl ^/webdynpro/resources/sap. com/tc~lm~itsam~ui~mainframe~wd/(.)*$ /nwa/remote_access_error [QSA]
now i am able to start NWA.
thanks for the response