Dear Nabanita,
You will not be able to get into Jadavpur University with your rank in WBJEE 2020. But you can get into 44 colleges and 8 of which are public engineering colleges. The following is the Link for more details:
https://www.careers360.com/college-predictors/wbjee-college-predictor/results?exam_id=2354&counselling_id=4205&rank=3937&rank_entered=3937&category_of_admission_id=3&miscellaneous_id=1&caste_id=2&gc=Good All the best
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