do level of paper change the date change or it will be same level of paper maintain to all sets of bits question paper
Now I used my time up to actually prepare for the exam so I am not really sure about how the test goes about but what I had heard was that they have three question banks for the questions: easy, medium and hard. They have a set percentage of each type of question. They generate the test by randomly pulling out questions from these question banks. So for them the tests are all of the same difficulty level. However, from a students perspective some questions may be easy and others hard despite them belonging to the same level according to the people who set the exam. If the stars and the moon align right then a particular student might get all the supposedly easy questions. So for him this test might be easier compared to the others.
However, all of this is totally arbitrary and I would suggest you dont wast your time on such trivial matters. If you study then you wont face such problems. One thing you would realise later on is that whatever set you write in a particular exam is the hardest. So dont think too much about all this and focus on whats important.
All the best :)