Hi aspirant,

Negative marking is a type of marking system where for every question you answer wrongly, you not only get no marks for that particular question but are also deducted extra marks from your previous total. This criteria varies but on average a one marknis deducted for each wrong answer in competitive exams. Some exams follow negatjve marking while other do not. You may follow this link for an example-

https://www.careers360.com/question-what-is-the-criteria-of-negative-marking-system-means-same-in-jee-14-marking-or-another/amp

Hope this helps.