Yes, JEE Main includes negative marking for certain types of questions. For Multiple Choice Questions (MCQs), each correct answer is awarded 4 marks, while each incorrect answer results in a deduction of 1 mark. However, for numerical value-based questions in Section B, there is usually no negative marking for incorrect responses. If a question is left unanswered, no marks are deducted. Candidates should attempt questions carefully to avoid unnecessary loss of marks due to negative marking.