Dear Rajendra, there have been issues with AIIMS MBBS final registration process ever since it started. While AIIMS has acknowledged the technical glitches, it has offered no resolutiin yet. Students who faced the same issue tried clearing the cache, browsing history, restarted their devices and relogged in. It worked immediately for few and it worked eventually for the rest. If the payment has been debiyed from the bank account, your applucation process will be completed.