The UNFPA's "State of World Population Report, 2023" estimates India's population to surpass China's by mid-2023, making India the world's most populous nation. The report also projects the world's population to reach 8 billion people on November 15th, and highlights the need for countries to invest in health, education, and other services. India's population growth has been driven by improved health care, increased life expectancy, and improved access to education.