Hello. As per my research, you must attach or take scan of latest markaheet, that is th e improvement marksheet.

Because at the end of the day, Mark's counted and the aggregate taken are from the improvement one. So yes, you will need to upload it in a pdf form, so do scan properly and clearly, and then upload this document.

If there is any size issue, then make use of pdf compressor available on Google.

Hope that helps!