Search option just as that provided in drupal.org can you please tell me which module to use to provide search options just as the search provided in https://drupal.org/download 

Thanks
Facetapi module will help you. From facetapi module page:


  The Facet API module allows site builders to easily create and manage
  faceted search interfaces.


You may also look into search_api module. From module page:


  This module provides a framework for easily creating searches on any
  entity known to Drupal, using any kind of search engine. For site
  administrators, it is a great alternative to other search solutions,
  since it already incorporates facetting support and the ability to use
  the Views module for displaying search results, filters, etc.


If you do not want to use the default Drupal search you can use apachesolr search module. This module can also be integrated with facetapi module.