Dhaka is the 11th most populous city of the world, according to a United Nations report.
The capital city now has a population just under 1.7 crore.
Styled "World Urbanisation Prospects: The 2014 Revision", the report was released on Thursday.
Tokyo tops the chart with a population of around 3.8 crore, followed by New Delhi and Shanghai with around 2.5 and 2.3 crore of people respectively.
Dhaka was 24th in 1990 with only 66.21 lakh people and saw a 3.6 percent annual rise in its population between 2010 and 2015.
The report projected that Dhaka would become the 6th most crowded city by 2030 with a population of over 2.7 crore.
More than half of humanity now lives in cities, and even more will soon. The world will have to confront how to make cities more fit for human habitation, reports The New York Times.
Those are the conclusions of a report released Thursday by the UN, raising new challenges including cholera, classrooms and food production.
If China urbanised most rapidly in recent decades, it is now India's turn, thanks to a large bulge of young people in its population. Between now and 2050, India is projected to add 404 million people to its cities.
The Indian capital, Delhi, became the world's second most populous city in 2014, more than doubling its population since 1990 to nearly 25 million. Mumbai is the other Indian megalopolis among the world's 10 most populous cities, with 20.7 million people.
Over all, India, China and Nigeria will account for 37 percent of the projected growth of the urban population between now and 2050, according to the report, World Urbanization Prospects.
Tokyo tops the report's list of megacities, with a population of more than 37.8 million. Two cities in China are among the top 10: Shanghai (23 million) and Beijing (almost 20 million). Only one is in the United States: Taken together, New York and Newark, with a population of more than 18 million, rank ninth. None of the top 10 is in Europe. The others are Mexico City, São Paulo, Osaka and Cairo.
By 2050, the vast majority of the world's megacities will be in Asia, according to projections by the world body. New York is forecast to slip to 14th place.
The pace of urbanisation has been remarkably swift. In 1950, only 30 percent of the world's people lived in cities. That has grown to 54 percent in 2014. By 2050, a full two-thirds of humankind will live in cities.
Close to half of them now live in small cities of less than 500,000 people. Only one in eight live in cities with more than 10 million people. There are 28 of these megacities around the world.
The overall numbers of rural inhabitants are projected to decline to 3.1 billion in 2050 from 3.4 billion today.