Good to see you excited for entrance exams.
In General, IPU conducts its CET for BBA in May but as you are well aware of the pandemic & lockdown. So exams get postponed in our country. For now IPU has extended the registration date for applicants. Once the registration process get completed the correction window will be open. Thereafter the date for CET will be announced then admit cards will release.
Don't be stressed. Just focus on prepration & be alert.