Hi,

These rank predictions are based just on the  trends observed in the last few years taking into account the difficulty level of paper. But these are just a rough estimate rather than being a pitch perfect and sure result. Even your own calculated score may vary. So you can't completely rely on the rank predictors, but you can surely hope for rank around that predicted.

So hope for the best.

Good luck.

hey 

these are just rough estimates but now that the paper is done & you have calculated your marks roughly 

based on a variety of factors a cut off is given based on which rank is predicted but no predictions can be said to be completely true till the actual result is out. 

Good luck!