Hi Dear,

Both CAT - Common admission test and Indian Institute of Foreign Trade Admission Test - IIFT is moderate to tough in its own way. Few students find cat to be tough then IIFT and many students find IIFT a bit tougher than CAT. IIFT is considered relatively tough also because of the time provided for exam. One advantage which IIFT offers is that you can shuffle between the sections. Also, there are few sitter questions which can be found in both the exams.

Hope this helps..  good luck