Help require to modify this array formula

Dear friends,
I want to find out the first topper student in each subject. The formula is working fine if there are not same marks in subjects but if the two or more students secure same marks then it is not giving correct output. It’s taking the first student in series which I don’t want.

The condition is:
If two or more students secure same marks then the rank should be taken in the consideration. The top rank should be given first number though it’s not first in the series based on roll no in the result sheet.

In this case the topper student in Marathi and Hindi is wrong output by the formula. I have given the correct required output table in the file.

Please suggest me a modification in the formula.

Any help will be appreciated.

Thanking you,