How to remove index.php from Codeigniter URL

In codeignetor, your apps url include with index.php by default. Like as : 
http://naimrajib.blogspot.com/index.php/[controller-class]/[controller-method]/

But you can easily remove index.php from your CodeIgniter’s URL so that your URL should be like:

http://naimrajib.blogspot.com/[controller-class]/[controller-method]/

To do this just follows the following steps:

1. Open config.php from system/application/config directory and replace
   $config['index_page'] = “index.php” by   $config['index_page'] = “”
   
   
2. Create a “.htaccess” file in the root of CodeIgniter directory (where the system directory resides).
   
   
3. open the ".htaccess" file using your favorite text editor, write down the following script and save it:

RewriteEngine on

RewriteCond $1 !^(index\.php|resources|robots\.txt)

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d

RewriteRule ^(.*)$ index.php/$1 [L,QSA] 

4. In some case the default setting for uri_protocol does not work properly.

To solve this problem just replace
$config['uri_protocol'] = “AUTO” by
$config['uri_protocol'] = “REQUEST_URI”
from system/application/config/config.php