Sign in using your VIT mail id. The mail id used here should be the same as the one used in the app.

After signing in with your VIT mail, proceed to sign in to VTOP.

Wait for some time for the semester to load after login. If the semester option doesn't show up, try logging in again.

Choose the semester you want to get data from and submit. Unless you manually change it, the same semester DA will be automatically synced with every login.