Chandigarh, officially known as Chandigarh, is a city and union territory in northern India, uniquely serving as the joint capital of both Punjab and Haryana states. Renowned globally for its modernist architecture and urban planning, the city was meticulously designed by the Swiss-French architect Le Corbusier. It stands as a prime example of post-independence urban development in India, characterized by its systematic layout, green spaces, and high quality of life. The city's name is derived from the ancient Chandi Mandir temple, dedicated to the Hindu goddess Chandi, and 'garh', meaning fortress [1, 2, 4, 5].

Chandigarh is situated near the foothills of the Shivalik range of the Himalayas, bordering Haryana to its east and Punjab in other directions [4]. The city's design philosophy, based on a human body analogy, features a clearly defined Capitol Complex as its "head" and a central business district as its "heart" [2]. This thoughtful planning has contributed to Chandigarh being consistently recognized for its advanced infrastructure and high living standards within India [3, 4].

• Chandigarh had a population of 1,055,450 as per the 2011 India census [4].
• The city's total area is 114 square kilometers (44 square miles) [3, 4].
• The population density was approximately 9,252 persons per square kilometer in 2011 [4].
• The literacy rate in Chandigarh was 86.77% in 2011, with male literacy at 90.81% and female literacy at 81.88% [4].
• The sex ratio in 2011 was 818 females per 1,000 males, while the child-sex ratio was 880 females per thousand males [4].
• Chandigarh observes Indian Standard Time (IST), with a UTC offset of +05:30 [6, 7].
• The city is known for its humid subtropical climate, experiencing very hot summers, mild winters, and monsoon rains from mid-June to mid-September [4].

As a Union Territory, Chandigarh is directly administered by the Central Government of India under Article 239 of the Constitution of India [8, 9]. Since 1984, the Governor of Punjab has concurrently served as the Administrator of Chandigarh, overseeing its administration [8]. Despite hosting the legislative assemblies of Punjab and Haryana, Chandigarh does not have its own legislative assembly [10].

Local governance is managed by the Municipal Corporation Chandigarh (MCC), which is considered one of the most powerful local authorities in India due to its dual role as a regional and local authority [10]. The MCC is responsible for civic amenities such as cleanliness, sanitation, street lighting, park maintenance, and sewerage disposal [11].

Chandigarh is recognized as one of India's wealthiest cities, with a high per capita income [4, 12, 13]. Its Gross State Domestic Product (GSDP) was ₹5,42,847.3 million (US$6,906.5 million) in 2022-23, showing an 8.02% CAGR between 2015-16 and 2022-23 [14]. The city's economy is shifting towards the services sector, particularly information technology, which has seen rapid growth [3, 15].

Key industries also include manufacturing and engineering, with over 1,150 ancillary units producing components for tractor industries, and pharmaceuticals, with nearly 800 pharma companies in the region [15, 16]. Tourism is another significant contributor, attracting approximately four million visitors annually [15].

Chandigarh boasts a well-developed infrastructure that has been pivotal to its growth and high quality of life. The city features a meticulously designed road network, classified according to function, and an integrated system of seven main roads, known as the '7 Vs', to ensure efficient traffic circulation [2, 18]. The Chandigarh International Airport provides extensive air connectivity, linking the territory to major Indian cities and international destinations like Dubai and Sharjah [4, 15].

The city also benefits from a robust power supply and ongoing initiatives to upgrade and renew its sewerage system [11, 15]. There are plans to convert bitumen roads to reinforced cement concrete (RCC) roads and to establish a second state library [3].