I have taken latest version of Portal and solr-web plugins from 5.2.x branches.
I have Solr 1.3.
Performed all the required steps to make solr work based on information available at various sources in community.
Everything was setup fine and I can do seach in solr admin interface for liferay content.
I can also do search in Control Panel.
Issue was coming in Search Portlet. Anything I search was resulting in NPE like from all OpenSearchImpl. Only directory search was resulting the content.
So search portlet is not working when configured with solr.