This could be probably duplicate due to unable to find that original even after checked the similar questions list of stackoverflow. Actually if user type myipaddress/gt then it should redirect to myipaddress/gt/gt.htm I tried various mod_rewrites but still gets the 'gt' folder contents listed in browser. I gave the last try with below mod_rewrite.
Options +FollowSymlinks RewriteEngine On RewriteBase / RewriteRule ^gt$ gt/gt.htm [NC,L]
But still the browser shows the contents of the 'gt' folder. What am I doing wrong?