Hello

You need to apply for the application, so firstly, to apply online, you need to visit the official site. There you will get all the information.

Now, as you have not mentioned where you want to apply, your type of application, so just follow these steps:-

Visit the site

Register yourself and then log in with your credentials

After that, click on apply for your required domain, apply by filling in all the details and submitting all the documents.

Click submit, pay fees if required, and then you have successfully applied and can download the proof.