Hi, Utsab. 

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

The minimum marks required for a student of your category in a government college in westbengal is 350 in many colleges for first counselling,  but you can also get into the top colleges in second and third counselling. 

Please check the link below for the more accurate information about the colleges 

https://medicine.careers360.com/articles/neet-cutoff-west-bengal/amp

Goodluck