By giving the details of your subjects you have made it easier to give the details of various fields where you can pursue your higher education.
First of all, it is my suggestion to you, try to do an introspection and find out where you are most interested in. When you do that and find out your interest, you finally enter into a field where you do justice with yourself and with your studies as well. Let me provide you with career options, think over them and select the best where your are interested the most.
1. Engineering:- The first and the foremost thought which one can get in the mind after looking at your subjects would be engineering. Apply for AIEEE exam, IIT EXam etc. and try to perform best. later when you get in any of the colleges, computer or IT stream would be better for you as you have already studied IT in your 11th and 12th.
2. Animation: If you a are a computer freak and love to draw and design then animation is the best field. It is the time to do something different and unique in the present world to have good earning profession later. There are very selective animation colleges, fine arts colleges in India. Do google them and apply for them.
3. Civil Services: This is one of the best choices that I can give. Civil services, one of the most reputed and sophisticated services in India. In order to prepare for them, opt for simple graduation with the subjects that you would like to keep as optional during your prelims and mains examination. One advantage here you have is your 12th subject geology. Geology is one of the optional subjects in IAS examinations. As you are already acquainted with the basics of geology, you can perform better in it.
"By silence I conceal my imperfections and come to know others."