Dear candidate,

There is nothing like chances. If you have sufficient marks and rank, you will surely get a government seat for MBBS. As of last year, in West Bengal Medical Government Colleges through All India Quota, the maximum closing rank was 29,949 with 479 marks (For unreserved Category). 

For more information on the cutoffs, you may visit the link: https://www.google.co.in/amp/s/medicine.careers360.com/articles/neet-cutoff-west-bengal/amp

There are a total of 14 Government Medical colleges with almost 2,050 MBBS seats.