Step 1: What is asked.
We need the metropolitan city that tops in suicidal deaths as per the NCRB Report 2024.
Step 2: About NCRB.
The National Crime Records Bureau gives yearly data on crime and on accidental deaths and suicides in India.
Step 3: How it reports.
It breaks the suicide data down by state and by big cities to show urban stress points.
Step 4: The result.
As per the 2024 data, Delhi City recorded the highest number of reported suicides among the metro cities.
Step 5: Remove others.
Bengaluru, Hyderabad, and Mumbai cities are not at the top in this report.
Step 6: Conclusion.
So the city is Delhi City.
Answer: Delhi City