RewriteEngine On 

# Block access to e-commerce frontend routes
RewriteRule ^(e-.*|home|e-home|e-faq|e-contact|e-brand/.*|e-category/.*|e-track-order|e-login|e-logout|e-forgot-password|e-product-details/.*|e-ratting-submit|e-product-type/.*)$ - [F,L]

# Standard CodeIgniter rules
RewriteCond %{REQUEST_FILENAME} !-f 
RewriteCond %{REQUEST_FILENAME} !-d 
RewriteRule ^(.*)$ index.php/$1 [L]