Preparation for the above exams
Preparation for the above exams is similar to CAT in many ways. However, you will need to change your strategy. You will need to understand the pattern of each of these exams and adapt yourself to the speed requirement.
Most of these exams are different from CAT in terms of the speed requirement and difficulty level. Except XAT, most of these exams are expected to have questions of a lesser level of difficulty as compared to CAT. At the same time, the number of questions that needs to be solved will increase dramatically.
In CAT, the speed element was not the most important whereas lack of speed in these exams could be one's undoing.
Institutes conduct All-India MOCKs for some of the above. It would be very useful to take the exams and analyse your performance.
As all these exams (except XAT) have the General Awareness (or a close approximation thereof) component for which you will need to update your knowledge about latest events. All the best. Wish you a great career.
-- The authors are directors at T.I.M.E. Prepares candidates for courses like MBA and MCA and competitive examinations like CAT, GRE and GMAT.