Abhimanyu Kheria

जय श्री कृष्ण

I found SOLR the best for the search functionality for your online portals.

Visit
http://en.wikipedia.org/wiki/Apache_Solr
http://lucene.apache.org/solr/

Apache Solr - Wikipedia, the free encyclopedia Solr (pronounced "solar") is an open source enterprise search platform from the Apache Lucene project. Its major features include full-text search, hit highlighting, faceted search, dynamic clustering, database integration, and rich document (e.g., Word, PDF) handling. Providing distributed search a…