title: codeigniter url routing 404 error
body: <p>Good Day Friends
  I am working on Codeigniter Site. I have a url like this</p>
  
  <pre><code>http://localhost/index.php/Medical/college/in/haryana
  </code></pre>
  
  <p>but i want </p>
  
  <pre><code>http://localhost/index.php/medical_college_in_haryana
  </code></pre>
  
  <p>Is it possible.</p>
  
  <p><strong>What I have tried</strong></p>
  
  <pre><code>$route['medical/(:any)/(:any)'] = 'medical_$1_in_$2';
  </code></pre>