1. A dynamic portal generation system comprising: a database comprising structured and unstructured data, wherein said database comprises information residing in associated standalone applications comprising a plurality of documents from a plurality of information sources, and a name-entity repository, wherein said name-entity repository includes a plurality of a name entities and their corresponding name-entity types; an indexing module executed by a processor that indexes said structured and unstructured data in said database; a search module executed by said processor that searches said information from the created index of information residing in associated standalone applications to obtain a search result based on a search query; a name-entity extraction module executed by said processor that extracts a matching name-entity from said search result that corresponds to a name-entity in said name-entity repository; a portal generation module executed by said processor that dynamically generates an information portal triggered by said search query; a search result segmentation module executed by said processor that aggregates said search result by a type or a source to form a plurality of search result segments; a portlet generation module executed by said processor that renders data extracted from at least one of said search result segments in a corresponding format; and an action module executed by said processor that integrates relevant actions corresponding to at least one of said search result segments and displays, on a display device, at least one actionable portlet that enables said user to perform additional operations on said information residing in said associated standalone applications based on service oriented architecture.
7. The dynamic portal generation system of claim 1 , wherein said action module displays a link that displays additional information relevant to said matching name-entity from said information residing in associated standalone applications when said link is clicked by said user.