Hello Rahul Das!

If I consider the previous year data .Then you have negligible chances of getting admission in any of the government colleges in West Bengal even through state quota .You might get admission in some other colleges through all india quota.
The cutoff changes almost every year,so not much  can be predicted .cutoff depends on the difficulty level of the paper and the number of students who appeared for the entrance exam.
Just hope for the best
Browse the link given below for detailed information.http://www.google.com/amp/s/medicine.careers360.com/articles/neet-cutoff-west-bengal/amp

Hope this will help you!

All the best for your future!

Thank you!