Hello Chirag
First of all you can not calculate your exact rank by your own because there are many tie brackers and we don't know how many .
And it should not be mistaken by authority because it is done by software .
Like 24 students score 100 percentile but all didnot get 1st rank .
I think you got it.
But even after this you have doubt;you can reach help centre from main site .
Good luck.

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