On the exam day, candidates must carry a printed copy of the CAT admit card along with a valid original photo ID proof such as Aadhaar Card, PAN Card, Passport, Driving License, Voter ID, or College ID (as specified in the official guidelines). The name on the admit card must match the ID proof. Candidates may also need to carry passport-sized photographs similar to the one uploaded during registration. Electronic devices, calculators, smartwatches, and study materials are strictly prohibited inside the exam hall.