on OMR sheets in NEET:

200 Questions (Though you only answer 180, the grid has spaces for 200).

Use A4 size paper . Ensure the print is clear and the "timing marks" (the black squares on the edges) are not cut off, as this mimics the actual scannable sheet. Step-by-Step Guide: How to Fill the OMR Sheet

Filling the OMR is as important as solving the physics problems. One mistake can cost you a year of hard work.