Your Roll Number is displayed in small text on your ForumIAS Academy Page.
You can see it here
- Visit http://academy.forumias.com
- Login or Sign up using your mobile number and email address
- If you are a new user, and you sign in, you will get your roll number and all details in your email
- You can always visit http://academy.forumias.com and scroll to the bottom of the screen to see your roll number