Get the original
Save the OMR image from NTA
Open the original-copy OMR in the NTA portal and use Download or Save image. A direct screenshot is also acceptable if it is sharp, full-size and has no phone controls covering the sheet.
Phone-friendly option
Use the original, upright OMR image from NTA, then crop it to only the complete Q001–Q180 marked-answer grid shown inside the red box below.
Get the original
Open the original-copy OMR in the NTA portal and use Download or Save image. A direct screenshot is also acceptable if it is sharp, full-size and has no phone controls covering the sheet.
Crop to the red box
Crop and upload only the region bounded in red in this example. It must contain the complete Q001–Q180 answer grid, all four question blocks and every option 1–4 bubble.
Select paper code 50, 60, 70 or 80 manually on the calculator because the code bubbles are outside this crop.

Crop carefully
Calculate
Choose Choose PDF or OMR image on the calculator. Review any bubbles it flags. For a cropped grid, manually choose code 50, 60, 70 or 80 before calculating.
Multiple bubbles: choose “Multiple (−1)”. A multiple response is shown as * in the NTA response table; a blank is shown as - and scores 0.