What led to the decline in mortality rate in India during 1921-1951?

Solution / समाधान:

1921–1951 के दौरान, भारत में मृत्यु दर में गिरावट का मुख्य कारण स्वास्थ्य और स्वच्छता में सुधार था।

• Improved health and sanitation / बेहतर स्वास्थ्य और स्वच्छता — Improvements in medical facilities, sanitation, disease control, and public health helped reduce deaths. ✅
• Second World War / द्वितीय विश्व युद्ध — It did not cause the decline in mortality.
• Increase in birth rate / जन्म दर में वृद्धि — Birth rate does not directly reduce mortality rate.
• Artificial intelligence / कृत्रिम बुद्धिमत्ता — Not relevant to this period.