QUERY REGARDING FILLING OF EXAM FORM

Hello. I have a doubt with respect to filling of Exam form for my Intermediate Group 2 Examination in November 2018 attempt. I am registered under new syllabus. I have cleared my Group 1 in May 2018 attempt. As I was filling my exam form, I saw an option named Partial Intermediate passing details. I wish to know about this option. In my opinion, I felt that this option enables us to give details about the group we have already cleared. I having cleared Group 1 , selected that option, but then I was confused with the options of levels which were as under:
Intermediate (IPC)
Intermediate ( Erstwhile)
and few other options such as ATE and so on.

I am really confused about this option and which level to select. An immediate response would be highly appreciated since the last date to fill exam form is a week way.

Thank You.