One of the biggest problems in the world is population. If this problem is not controlled now, then it is going to cause maximum harm to human beings. A human being is a social animal and building community is one of its main functions. On July 11, the world will celebrate World Population Day and keeping this in mind, today we are going to tell you about 10 such cities in the world which have the highest population. List of world's most populous cities Tokyo, Japan The city ranks first among the world's most populous cities. Its total population is 3 crore 74 lakh 68 thousand 302. New Delhi, India The capital of India stands second in this case. The total population of this place is 2 crore 85 lakh 13 thousand 682. Shanghai, China The population of Shanghai city of China is 2 crore 55 lakh 82 thousand 138. Sao Paulo, Brazil The total population of this Brazilian city is 20 million 16 thousand 50 thousand. Mexico The total population here is 2 crores 15 lakh 80 thousand. Cairo, Egypt Cairo city of Egypt has a total population of 27.6 million. Mumbai, India The name of India's financial capital Mumbai is also included in this list and its total population is 1 crore 99 lakhs. Beijing, China Beijing of China is also included in this list. Talking about the population, its total population is 1 crore 96 lakhs. Dhaka, Bangladesh The capital of Bangladesh is at the 9th position Dhaka and has a total population of 1.95 million. Osaka, Japan At number 10 is Japan's Osaka. Its total population is 1 crore 92 lakhs. This is the most dangerous queen in the world, used to do such work with the blood of girls This 65-year-old postman used to deliver letters to people in this way Rakshabandhan is not celebrated in this village for last 900 years