title: Remove indexed data from solr index
body: <p>How to remove particular data from solr indexed fileds.
  e.g. 
  Indexed</p>
  
  <p>No | Rank | Field    | Text
  1  | 95   | content  | data
  2  | 80   | content  | hrkg</p>
  
  <p>(seen thr' luke jar file)</p>
  
  <p>So I have to remove only the 'hrkg' entry from indexed 'content' field, not all documents.</p>