Hello,
I hope you are doing fine, As you mentioned you gave improvement exam and got 35 but in your previous exam marksheet it was 59 so your 59 marks will be updated because marks which is greater in considered in improvement exams. So you can be assured about this and if your are satisfied with 59 marks then can continue your further studies but if you still wanna give improvement exam once again then can surely appear again after preparing and give exam again.
I hope you find this information helpful. I wish you all the best for your future.
Good Luck
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