According to the guidelines set by CBSE, it is mandatory to utilize or carry solely a blue or royal blue ballpoint, gel, or fountain pen for the examination.

Check the CBSE Guidelines during the exam

https://school.careers360.com/boards/cbse/cbse-exam-day-guidelines

Hello Candidate!

As per CBSE guidelines students are advised to carry only BLUE/ROYAL BLUE/BALLPOINT/GEL/FOUNTAIN PEN to write answers. However, black pen is allowed only to highlight the answers/headlines/titles .

Hope this helps.