preparation of ca final exam

wholly depends on your current status of syllabus completion.
It also depends on your reading capacity .. whether you are a night owl or a morning lark?
What is your current schedule of the whole day?
which are the subjects that u r comfy with?
which are the subjects that u feel need more attention.

Frankly speaking.. there can not b a straight answer or readymade study plan to ur question.

It is a discussion needing two way elaboration of existing factors and prospective possibilities.

Study for 10-12 hours daily. Complete all subject revision atleast 3 times.