Hi Govardan,
Refer the below document and also the link, try to follow the same steps or correct if you have already done it. Hopefully these should help to resolve your issue.
Try to go through first link it has all the information with example it will help to fix the issue. Still not then follow rest of the links.
Link: [Migrating Local Developments to a Centralized NWDI Environment (Developer''s Viewpoint|http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/30914427-0f77-2e10-74b5-d0c488aa93ee]
Also refer to below link too...
Migrating Local Web Dynpro Projects to the NWDI (7.00)
http://help.sap.com/saphelp_nw70/helpdata/en/42/c8204dd57f136fe10000000a1553f7/frameset.htm
http://help.sap.com/saphelp_nw70/helpdata/EN/42/c8204dd57f136fe10000000a1553f7/frameset.htm
http://help.sap.com/saphelp_NW70EHP1core/helpdata/en/eb/765d364523df439c01997cf0a9a87f/frameset.htm