Hi Koushik, first of all congratulations for such a wonderful rank. With this rank, you can definitely make it to Jadavpur University Kolkata. Also you can check these colleges cutoff rank, because you can also get in these colleges,

1. Kalyani government college

2. Jalpaiguri government college

3. Haldia institute of technology

Do visit this link for having more information about wbjee and it's application procedure.

https://engineering.careers360.com/articles/wbjee-cutoff

All the best Koushik and do ask if you have any further queries.