is there negative marking in ssc cgl?

Correct option is A

Yes, there is negative marking in SSC CGL:

Tier 1: 0.50 marks are deducted for each wrong answer.

Tier 2: For Section-I, Section-II, and Module-I of Section-III of Paper-I, 1 mark is deducted for each wrong answer. For Paper-II and Paper-III, 0.5 marks are deducted for each wrong answer
So, it's important to answer carefully and not guess blindly during the exam.