After successful integration of apache solr module in drupal 7 and displaying the result Ii found that it is using the view files (search-results.tpl.php & search-result.tpl.php) from the core search module to display the result.
How can I use my custom files similar to (search-results.tpl.php & search-result.tpl.php) inside the apache solr module folder to display the result?
Since I am new to drupal and just started can somebody guide me to implement it.
The .tpl.php files are theme template files, and you can override them by using identically named files in your own theme. Some deeper reading at Drupal docs.
Or you could use the search features provided by Google, as I did, and find an already existing answer on a related site.