hai frds, I'm planning to study CS executive can anyone give me suggestions for studying

SImple planning you have to make a proper time table and according to that  you have to work and start your preparation.Prepare notes/summarize everything, mark important sums, while studying in Classes. Try to make sure you understand all concepts. Dont think about the exam what will come or what will not come in exam because these types of things break the concentration of the student and make unconscious . Attempt mock tests which were available at many sites from these tests you got an idea of the exam pattern and questions level