Scan your results and upload them.
Also add a copy of any certificate you have be it club, sports etc
According to UDS,
YOU WILL BE REQUIRED TO UPLOAD A WHITE BACKGROUND PASSPORT-SIZE PHOTOGRAPH NOT LARGER THAN 300Kb IN JPG/JPEG OR GIF FORMATS
UNDERGRADUATE APPLICANTS ARE ALSO REQUIRED TO UPLOAD THEIR CERTIFICATES OR RESULTS SLIPS IN JPG/JPEG OR GIF FORMATS
So kindly do well and upload them