In West Bengal there are very few colleges that provide B.sc Geology course. The name of the colleges that provide B.sc Geology are given below,

1. Jadavpur University- One of the best university in West Bengal is Jadavpur University and their Geology department is also very good. Both Bsc and Msc Geology degree is provided by this University.

2. Presidency University- It is also a very prestigious university and Geology department here is also very good. Bsc and Msc Geology degree is provided by this college. If you want to take admission in Presidency University then you have to give admission test which is conducted by WBJEE. To get admission in Geology you have to give the common test only( which is common to get honours in all the papers). The paper consists of Physics, Chemistry and Math.

3. Asutosh College- Asutosh College also provides Bsc Geology degree and their Geology department is also very good. The college is under Calcutta University.

4. Jogomaya Devi College: It is the morning section of Asutosh College and it is a female college. The college also provides Bsc Geology degree. The college is also under Calcutta University.

5. Durgapur Government College:  This college is under Kaji Najrul University. Their Geology department is very good and the department is very old too. Both Bsc and Msc degree is provided by this college.

Now, as per my knowledge, If you want to study Geology in West Bengal, then the Geology department of Jadavpur University is the best.

See, the cut off changes little bit every year based on demand and competition.

https://university.careers360.com/articles/jadavpur-university-cutoff

This is the link where you can check all the unreserved and reserved category cut off of previous years for Bsc admission in Jadavpur University . The merit marks to get admission in Geology in Jadavpur University is calculated by summing the marks of Physics, Chemistry and Math.