NEET-PG has 200 questions. Four marks for a correct answer, one deducted for a wrong one.
So even with zero knowledge, blindly marking A for all questions will, statistically, still fetch around 40–60 marks by random chance.
You need to be a special kind of idiot to score 1 in such a scenario. This shows that you have neither medical knowledge nor common sense. And the biggest irony is that we are making such people specialist doctors. What a country, and what a system, man!