Hii

The application form link will be sent to you through your email id. Once you click on the link a login page will appear. Enter your credentials and login to your account. 
On the top right corner of your page you will find two options, one is logout and other is GO TO APPLICATION FORM.
Click on this option and you will be redirected to your application form.
Complete the application as directed and then pay the fees to complete your application.

Hope this helps
Feel Free to revert back incase of any doubt.
Thanks!!