WHICH ONE IS MORE TOUGHER CA OR IAS

CANT COMPARE, IAS IS ALWAYS TOUGHER THEN CA.

According to my knowledge, I think that IAS is a much broader subject than CA because of how vast the nature of IAS is. IAS does not only limit to finance and accounting but is spread across a wide range of subjects. The subjects in CA are limited whereas in IAS it is not. 

You really cannot compare both these exams. They're both tough in their own ways. If both are studied in-depth and dedication then cracking both the exams is not difficult. You need enough dedication and devotion of time for such exams.

Dear student's and Member's, CA is related to finance, accounting, tax, audit, banking credit , investment banking etc , i.e a different department in company or govt offices. whereas IAS is service cadre of centre government over state government , these Cadre officer serve in administration department of company or govt office. So both department or profession work and area of power is different