Evaluating Statement 1:
- The NSSO defines unemployment based on the willingness and availability of individuals to work but their inability to find employment.
- This definition is widely accepted in economic surveys and labor studies.
Evaluating Statement 2:
- Disguised unemployment, where more people are engaged in work than required, is a major issue in densely populated countries like India, particularly in the agricultural sector.
Conclusion: Both statements are factually correct, making \( \mathbf{(C)} \) the correct answer.