Hello Koushik,
Based on your rank, There are a lot of colleges where you can apply. However, I would suggest you read reviews of alumnae and other students of the college of your choice to know more about the college education system and placements.
Some of the colleges where you can apply are:-
Jadavpur University
Heritage Institute of technology
University of Calcutta
Kalyani government engineering college
Jalpaiguri government engineering colleges.
For more colleges based on your result you can visit the following website:-
https://engineering.careers360.com/college-predictor-result/50034?s=76412666071528913441
Good luck!
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