Here are some clarification and Announcement by Board of Studies regarding applicability of New Scheme of Education and Effects thereof on existing scheme.
These Pdf Files would clarify all your Doubts.
httpesource.cdn.icai.org/45557bos35643.pdf
https://resource.cdn.icai.org/45556bos35643summary.pdf
https://resource.cdn.icai.org/45555bos35643faq.pdf