You can schedule Appointment from the Account Details page on CoWIN website. Click on the Calendar icon placed in front of each registered user or directly click on the Schedule Appointment button. You will get redirected to Book Appointment for Vaccination page. On this page, search the vaccination centre of choice by State, District, Block and Pin code.
Click on Center name and it will show available slots (date and capacity). Then click on the Book button and after that a new ‘Appointment Confirmation’ page will appear. Check all the details properly and click the Confirm button.