Thiruvananthapuram, officially known as Thiruvananthapuram, is the capital city of the Indian state of Kerala. Often referred to as 'Trivandrum', the city lies on the southwest coast of India and is renowned for its undulating terrain of low coastal hills. Mahatma Gandhi famously called it the 'Evergreen City of India' due to its lush green landscapes and numerous public parks. The city's name itself, meaning 'The City of Lord Ananta', is derived from the deity of the revered Sree Padmanabhaswamy Temple, a significant spiritual and architectural landmark at its heart [1, 2, 4].

The city's history dates back over a thousand years, with ancient trading traditions as early as 1000 BCE, believed to be the ancient port of Ophir. It gained prominence in the 18th century when Marthanda Varma made it the capital of the princely state of Travancore in 1745. Following India's independence, Thiruvananthapuram became the capital of Travancore-Cochin state in 1949 and later the capital of Kerala when the state was formed in 1956. Over the centuries, it has evolved into a vibrant metropolis that harmoniously blends its rich cultural heritage with modern advancements, particularly in technology and education [2, 3, 5].

• Thiruvananthapuram is the most populous city in Kerala, with a municipal corporation population of 957,730 and a metropolitan area exceeding 1.7 million inhabitants as of 2011 [2, 4].
• The city is situated along the Arabian Sea and bounded by the Western Ghats to its east, with an average elevation of 16 feet (4.9 meters) above sea level [4].
• Thiruvananthapuram has a high literacy rate of 93.72%, significantly exceeding the all-India average of 74% [4].
• The city is a major IT and ITES (Information Technology Enabled Services) hub in India, contributing substantially to Kerala's software exports, with Technopark being one of the largest IT parks in the country [4, 7].
• India's space program originated in Thiruvananthapuram with the establishment of the Thumba Equatorial Rocket Launching Station (TERLS) in 1962, followed by various centers of the Indian Space Research Organisation (ISRO) [4, 7].
• The city is home to the Sree Padmanabhaswamy Temple, one of the wealthiest temples globally, holding valuables estimated at approximately $22 billion [4].
• Thiruvananthapuram was ranked the best Indian city for two consecutive years (2015 and 2016) in the Annual Survey of India's City-Systems (ASICS) for its governance [4].
• Malayalam is the dominant language, with English widely used, and Tamil having a significant number of speakers [4].

The administration of Thiruvananthapuram is primarily overseen by the Thiruvananthapuram Municipal Corporation (TMC), which manages the civic infrastructure across its 100 wards. Each ward elects a councillor, and the TMC functions as the local government, headed by an elected Mayor. The Mayor is responsible for the overall supervision and control of the Corporation's administrative functions, supported by various standing committees [4, 6].

As the capital of Kerala, Thiruvananthapuram also hosts the Kerala Legislative Assembly and the state secretariat. Law and order are maintained by the Thiruvananthapuram City Police, headed by a Commissioner, and it is the largest police division in Kerala. The city is also home to significant military and diplomatic establishments, including the headquarters of the Southern Air Command of the Indian Air Force and several foreign consulates, such as those of the UAE, Maldives, Sri Lanka, Russia, and Germany [4].

Thiruvananthapuram's economy is diverse, primarily driven by information technology, tourism, education, and aerospace. The district contributes approximately 10.31% of Kerala's Gross State Domestic Product (GSDP) and is recognized as the fastest-growing district in the state with an economic growth rate of 13.83% [4, 8]. The city's strategic location near major international shipping routes and its reliable infrastructure, including electricity and fresh water, have significantly boosted industrial growth [4].

Key economic drivers include the presence of major IT and ITES companies, which account for about 40-45% of Kerala's total software exports. The city is also a significant center for aerospace research, housing the Vikram Sarabhai Space Centre and BrahMos Aerospace Trivandrum Limited, a leading missile integration and defense production unit. Beyond modern sectors, traditional industries like mineral processing, sugar milling, textiles, and handicrafts, along with rice and coconut cultivation and coastal fishing, remain economically important [4, 8].

Thiruvananthapuram boasts a well-developed infrastructure, crucial for its role as the state capital and a growing economic hub. The road network is extensive, served by National Highway 66 and major State Highways like SH 1, SH 2, and SH 45, including the arterial Main Central Road. City roads are managed by the Thiruvananthapuram Roads Development Company Limited (TRDCL), which has won international awards for its urban road improvement projects incorporating modern features like dedicated ducts for utilities and cycle tracks [12, 13].

The city's rail transport is a vital link, with Thiruvananthapuram Central being the busiest railway station in Kerala, offering long-distance connections across India. Air connectivity is provided by the Thiruvananthapuram International Airport, the first airport in Kerala (established 1935), offering direct flights to major Indian cities and international destinations. The ongoing development of the Vizhinjam International Seaport, India's first deep-water transshipment port, is poised to significantly enhance maritime trade and logistics due to its natural depth and proximity to international shipping lanes. The city also plans a metro rail system to further ease urban congestion [4, 12].

In terms of utilities, the Kerala Water Authority supplies water from the Karamana River, with significant projects like the Wellington Water Works (commissioned 1933) ensuring potable water supply. The Kerala State Electricity Board (KSEBL) manages electricity, with efforts to enhance transmission capacity through projects like Transgrid 2.0 and promote renewable energy sources. The city has also implemented smart initiatives like e-mobility projects and public EV fast charging stations, contributing to a sustainable urban environment [4, 14, 15].