Bubbling 1234567 instead of 1234576. Even one digit wrong = unmarked sheet.
This is where you answer the 200 Multiple Choice Questions (MCQs). The questions are typically arranged in serial order (1 to 200) with four options (A, B, C, D) for each. bcs preliminary omr sheet
The OMR sheet is designed for machine-readability, containing specific zones for identification and answers: Bubbling 1234567 instead of 1234576