Hi, Biswajit.

Neet is an all India common entrance examination for the medical aspirants to get into the undergraduate courses in both government and private colleges.

For the admissions in bams colleges

There are three types

Government 

Semi government

Private

For the government college, minimum cutoff marks for your category is 400+

For the semi government colleges, minimum cutoff marks is 360+

For private colleges, minimum cutoff marks is 280+

With the west Bengal state quota of your category you can very possibly get into the bams colleges.

Goodluck 

Hello

One can only give an estimate of cut off needed for bams  and I guess you have fair chances of getting bams