The National Testing Agency (NTA) has released the provisional answer key for the Military Nursing Service (MNS) Selection for SSC 2023-24. Candidates can challenge the key until January 18, 2024. The NTA conducted the exam on January 14, 2024, for 28,220 candidates across 90 cities. The challenge process involves a fee of ₹200 per question. The finalized key by subject experts will determine the result. Candidates can check the NTA official website for the latest updates.