Dear Saurabh
Wbjee 2020 difficulty level is almost same as of Wbjee 2019 paper. So, according to last year analysis you will not get CSE branch in Jadavpur University . However you might have a chance of getting CSE in IEM or Heritage.
The Marks vs Ranks of Wbjee 2019 are as follows:
Marks --- Rank
>140 - - - 65<
>130 - - - 100<
>120 - - - 250<
>110 - - - 450<
>100 - - - 850<
>90 - - - 1400<
>80 - - - 2500<
>75 - - - 3300<
>70 - - - 4000<
>65 - - - 5000<
>60 - - - 6500<
>55 - - - 8000<
>50 - - - 10000<
>40 - - - 17000<
>30 - - - 40000<
Hope this helps
All the Best !!
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