Hello Aspirant,
See Careers360 Rank Predictor us designed by our experts who have gone through the previous year's ranking trends and made a deep analysis then after they put all the information in the predictor and then you are getting the results against your marks. So as we know that the ranking might vary year to year depending upon various factors so a range of rank and percentile is been kept there which will tell you that your result will be in the range of this. However if you wants to know about variations do there might be variations of 0.00001% which is almost negligible.
You can also use JEE-Main College Predictor to predict your chances of admission in different NITs/IIITs/IITs/GFTIS :-
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer
For any queries related to predictors you can write us at ask@careers360.com
I hope this information helps you.
Good Luck!!
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