Yes,i am 100 % sure,beacuse they mostly asked current situations and current topics....one can see this in past papers of ISI......second no need to buy any book for this purpose,there is nothing but wasting of time....i strongly suggest you to not go for any book,just read dawn.....
@yumna
you can find related information in the thread of ministry of defence,past papers..etc.....whenever these posts announce i will put it here....
if anyone have more queries then add me,i will surly try to help you guys..
shah602@hotmail.com