The population of the southern city of Chennai in India amounted to about ten million inhabitants. This was an increase of approximately two million inhabitants compared to the year 2000. Chennai, formerly known as Madras is the capital city of the state of Tamil Nadu.

The southern state of Tamil Nadu in India recorded a population density of 555 people for every square kilometer according to the country's latest census in 2011. This was a significant increase compared to a decade earlier where the figure stood at 480.

Vital Statistics: Birth Rate: per 1000 Population: Tamil Nadu: Urban data was reported at 13.600 NA in 2020. This records a decrease from the previous number of 14.000 NA for 2019. Vital Statistics: Birth Rate: per 1000 Population: Tamil Nadu: Urban data is updated yearly, averaging 15.800 NA from Dec 1997 (Median) to 2020, with 23 observations. The data reached an all-time high of 18.200 NA in 1999 and a record low of 13.600 NA in 2020. Vital Statistics: Birth Rate: per 1000 Population: Tamil Nadu: Urban data remains active status in CEIC and is reported by Office of the Registrar General & Census Commissioner, India. The data is categorized under India Premium Database’s Demographic – Table IN.GAH002: Vital Statistics: Birth Rate: by States.

Census: Number of Migrants: Tamil Nadu data was reported at 31,274,107.000 Person in 03-01-2011. This records an increase from the previous number of 15,824,383.000 Person for 03-01-2001. Census: Number of Migrants: Tamil Nadu data is updated decadal, averaging 15,824,383.000 Person from Mar 1991 (Median) to 03-01-2011, with 3 observations. The data reached an all-time high of 31,274,107.000 Person in 03-01-2011 and a record low of 13,430,472.000 Person in 03-01-1991. Census: Number of Migrants: Tamil Nadu data remains active status in CEIC and is reported by Office of the Registrar General & Census Commissioner, India. The data is categorized under India Premium Database’s Demographic – Table IN.GAG001: Census of India: Migration: Number of Migrants: by States.

Delhi was the largest city in terms of number of inhabitants in India in 2023.The capital city was estimated to house nearly 33 million people, with Mumbai ranking second that year. India's population estimate was 1.4 billion, ahead of China that same year.

The projected median age of population in India, at national level, was expected to go up to more than 34 years by 2036 versus almost 25 years in 2011. At state level, Tamil Nadu reflected the highest projected median age with over 40 years in 2036 versus nearly 30 years in 2011.

The projected median age of population of a country is contingent upon several health metrics such as the fertility rate, birth rate, and mortality rate. For instance, if a country or state sees a lower fertility and mortality rate, the geriatric population is expected to increase proportionally.

Registered Motor Vehicles: City: Chennai data was reported at 6,351.729 Unit th in 2020. This records an increase from the previous number of 5,996.624 Unit th for 2019. Registered Motor Vehicles: City: Chennai data is updated yearly, averaging 3,455.789 Unit th from Mar 2002 (Median) to 2020, with 19 observations. The data reached an all-time high of 6,351.729 Unit th in 2020 and a record low of 1,355.550 Unit th in 2002. Registered Motor Vehicles: City: Chennai data remains active status in CEIC and is reported by Ministry of Road Transport and Highways. The data is categorized under India Premium Database’s Automobile Sector – Table IN.RAE001: Number of Registered Motor Vehicles: by Cities.

Total Fertility Rate: Tamil Nadu data was reported at 1.400 NA in 2020. This records a decrease from the previous number of 1.500 NA for 2019. Total Fertility Rate: Tamil Nadu data is updated yearly, averaging 1.700 NA from Dec 2005 (Median) to 2020, with 16 observations. The data reached an all-time high of 1.700 NA in 2014 and a record low of 1.400 NA in 2020. Total Fertility Rate: Tamil Nadu data remains active status in CEIC and is reported by Office of the Registrar General & Census Commissioner, India. The data is categorized under India Premium Database’s Demographic – Table IN.GAH006: Vital Statistics: Total Fertility Rate.

There were over six million registered vehicles across the city of Chennai in India at the end of fiscal year 2020. Between fiscal years 2010 and 2020, the compound annual growth rate of registered motor vehicles stood at 9.83 percent.

The statistic shows the built up area of Chennai in India from 1975 to 2015. In 2015, the built up area of Chennai amounted to about 340 square kilometers, up from about 306 square kilometers in 2000.

Literacy Rate: Tamil Nadu data was reported at 80.100 % in 12-01-2011. This records an increase from the previous number of 73.450 % for 12-01-2001. Literacy Rate: Tamil Nadu data is updated decadal, averaging 58.525 % from Dec 1961 (Median) to 12-01-2011, with 6 observations. The data reached an all-time high of 80.100 % in 12-01-2011 and a record low of 36.390 % in 12-01-1961. Literacy Rate: Tamil Nadu data remains active status in CEIC and is reported by Office of the Registrar General & Census Commissioner, India. The data is categorized under India Premium Database’s Education Sector – Table IN.EDA001: Literacy Rate.

The estimated per capita income across the southern state of Tamil Nadu in India stood at around 315 thousand Indian rupees in the financial year 2024. There was a consistent increase in the income per capita in the state since the financial year 2012. Sikkim recorded the highest per capita income in the country.

With approximately 1.5 million visitors in fiscal year 2023, the group of 7th to 8th century CE monuments in the coastal town of Mamallapuram in India was the most visited ASI monument by domestic visitors in the Chennai circle.

As of 2024, Mumbai had a gross domestic product of 368 billion U.S. dollars, the highest among other major cities in India. It was followed by Delhi with a GDP of around 167 billion U.S. dollars. India’s megacities also boast the highest GDP among other cities in the country. What drives the GDP of India’s megacities? Mumbai is the financial capital of the country, and its GDP growth is primarily fueled by the financial services sector, port-based trade, and the Hindi film industry or Bollywood. Delhi in addition to being the political hub hosts a significant services sector. The satellite cities of Noida and Gurugram amplify the city's economic status. The southern cities of Bengaluru and Chennai have emerged as IT and manufacturing hubs respectively. Hyderabad is a significant player in the pharma and IT industries. Lastly, the western city of Ahmedabad, in addition to its strategic location and ports, is powered by the textile, chemicals, and machinery sectors. Does GDP equal to quality of life? Cities propelling economic growth and generating a major share of GDP is a global phenomenon, as in the case of Tokyo, Shanghai, New York, and others. However, the GDP, which measures the market value of all final goods and services produced in a region, does not always translate to a rise in quality of life. Five of India’s megacities featured in the Global Livability Index, with low ranks among global peers. The Index was based on indicators such as healthcare, political stability, environment and culture, infrastructure, and others.