PAAR stands for Prospective Applicants Advanced Registration. As AIIMS group of Institutions offer various courses in different stream, candidates likely to choose more than one course at a time. For that, they have to register separately. To ease the whole process of registration, PAAR facility was introduced where a unique registration code is generated for each candidate. As per the PAAR facility, INI CET 2023 application form has to be filled in two stages, basic and final registration. Those who complete basic registration are eligible to generate Exam Unique Code (EUC) and proceed for the final registration.