B.Sc Geology

https://www.shiksha.com/science/colleges/b-sc-geology-colleges-india
Hope the link aids you better.

No, Kolkata University doesn't have B.Sc Geography, you can choose presidency University.

There is no hostel facility available for any students in Ram Anand college.

CUCET known as Central University Common Entrance Test jointly conducted by 7 CU's for their various courses admission. CUCET is the only gateway for admission in CU Kerala. You should also have to go through CUCET for admission in CU Kerala for B.Sc. Geology.

JEE is only for B.Tech courses, it is not not applicable for other Bachelor's courses.

Basic eligibility for candidate to apply for B.Sc from Dr. B.R. Ambedkar Open University, Hyderabad is that candidate should have cleared their intermediate examinations with Science. You should clarify with the relevant authorities if your diploma is equivalent to intermediate examinations so that you may be eligible to apply or you should have One year work experience in any Science & Technology Organisation. Regards.

Some popular colleges which offer geology course in Chennai are mentioned below:
1) Presidency College
2) Air Force Administrative College
3) Department of Applied Geology, University of Madras
4) Department of Geology, University of Madras
Regards.