Geology

Yes, you have a chance of getting the seat according to your rank and it is too good enough to get a seat in AU.

Yes, take the subject combination assuming that you are talking about class 12th, you can take these three subjects. If your school allows it and if not then probably can't talk to them and tell them that we will give exams in externally, if it is allowed in your school. But, it is not allowed in all the schools and if you question is related to college level then definitely in BA Programme you can take these three subjects combinations, but depends on your college or university.

Yes, I can definitely tell you the fee structure, but before that you need to tell us which college and university are you talking about.

Hi,
Sorry, but you are not available for spot round, because you have no rank so that's why try another college.

Here is the list of colleges for doing B.Sc Geology. You also get information about admission procedure
https://www.shiksha.com/science/colleges/b-sc-geology-colleges-india
Hope it helps you well.

Get the M.Sc Geology details here :
https://www.shiksha.com/science/course/m-sc-in-geology-presidency-university-kolkata-college-street-271070

Interested candidates can apply online with required information. Eligible candidates need to appear for the Common Entrance Test (CET) conducted by the Pondicherry University. Candidates are selected based on marks obtained in Common Entrance Test (CET) conducted by the Pondicherry University.

There is not such criteria of minimum marks, but you have to appear for their entrance ECAM, which is on 4th July 2019, and it's form will be released from 26 June 2019.