Delhi, Mumbai and Kolkata among world's most populated cities; check rankings

Delhi, the capital of India, the world's most populous country, has achieved second place in the most populous cities globally list, with a whopping population of 33.8 million. The financial capital Mumbai and Kolkata, also called the 'city of joy', also found a place in the top 20.

According to the latest Union Nations World Urbanisation Prospects 2024, India, which currently has a population of more than 1.4 billion, is expected to reach a population of 1.7 billion in 2062.

Delhi is leading the pack in this direction, followed by Mumbai, Kolkata, Bangalore, Chennai, Hyderabad and Ahmedabad.

List of top 10 most populated cities in India

Source: UN World Urbanisation Prospects

Japan's capital, Tokyo, has topped the global ranking with a population of 37.1 million.

Most populated cities in the world

World population to peak within this century: UN report

UN's World Population Prospects 2024 expects the world's population to peak in the mid-2080s, growing in the time period from 8.2 billion in 2024 to around 10.3 billion in the mid-2080s. After peaking, the population will return to around 10.2 billion by the end of 2100, it added.

By the end of this century, the world's population is now projected to be 6% lower or 700 million people fewer—than anticipated a decade ago.

As of 2024, the population has peaked in 63 nations, including China, Japan, Germany and the Russian Federation, and the total population of these countries is expected to decline by 14% over the next thirty years.