CA RE REGISTRATION FROM OLD SYLLABUS

Once you pass a particular level, then there is no option of surrendering the result for improvement of marks or whatever.

Last attempt for IPCC (old syllabus) is in May-2020, upcoming attempt. Extension is not likely since 2 attempts extension was already given earlier.

Further, you cannot register as a fresh student. So, it will better to convert your registration into new syllabus CA Inter and continue your studies therefrom. You will get credit for your articleship completed earlier or any group passes earlier.

Kindly do not think in an absurd manner and finish what you started, if you still have the passion for this field.