Many thanks Jose Sadel 

Follow the steps and added:

   #Redirect from HTTP to HTTPS added by Jose Sadel

    RewriteCond %{HTTPS} !=on

    RewriteRule .* https://mydomain.com%{REQUEST_URI} [R,L]

    #Redirect Ends

But giving me "ERR_TOO_MANY_REDIRECTS"

Deleted cookies, but same problem.

Any hint over this?

Thanks a lot!

Try applying one solution at the time, and test it.

Maybe you don't need to modify the htaccess file if the first solution works.

I'm glad you've  figured out :)

I knew there were other server redirects somewhere in cPanel and therefore i had suggested (on my earlier reply above) to only apply the una secure default. Nice! 🙂