Hey

Your best of four is 82.5% (Hindi elective+English+Physics+Chemistry)

Since you are from mathematics stream and want to pursue arts course, so you'll face a deduction in your best of four, 2.5% per change of subject.

While calculating your best of four marks, it's mandatory to include the subjects that you wish to pursue. Since, you are from OBC category and taking your best of four marks into consideration, as per previous cut off trends, you may get colleges after release of further cut offs.

You can also predict colleges here -

Thanks