The number of toppers in the NEET-UG exam is set to come down to 17 from 61 when National Testing Agency (NTA) announces the revised merit list, most likely on Friday. Revision of the merit list was necessitated after IIT-Delhi, working at Supreme Court’s instance, recommended that only one of the options in a question in the physics paper was correct. Several students had complained that two of the four options could be held to be correct going by different NCERT books.