Difference between IPCC & INTERMEDIATE (IPC)

If you've already registered under the old scheme i.e. IPCC, you can give exams as per the old syllabus itself. There is no much change in the syllabus except for amendments in few subjects. By IT, if you mean Information Technology, then I don't think there's a lot of change except for few additions and deletions - the syllabus hasn't changed as such. Indirect Tax for the coming exam would mean GST. So you'll have to study basics of GST for the coming exams.