Hello

To get mechanical seat in jadavpur university  you need to get rank under 700 and you need to score above 155 Based on category, the cutoff will be varies.Here you didnt mention your category. If your category is obc,you need to score below 4040 and you need to score above 125..Here im providing link to get more information.

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

Hope this information helps you.

All the best.