Chennai, formerly known as Madras or Madrasapattinam, is the capital city of the Indian state of Tamil Nadu, located on the Coromandel Coast off the Bay of Bengal. Chennai is the fourth most populous metropolitan area and the sixth most populous city in India. As of 2011, the Chennai Metropolitan Area had a population of nine million. Chennai's economy has a broad industrial base in the automobile, computer, technology, hardware manufacturing and healthcare industries. The city is India's second largest exporter of software, information technology (IT). A major chunk of India's automobile manufacturing industry is based in and around the city, which leads it to be called as 'The Detroit of Asia'. The city is also called as 'Gateway to South India', due to its importance as a port city and its major role in South India's development. Chennai is an important centre for Carnatic music and hosts a large cultural event, the annual Madras Music Season, which includes performances by hundreds of artists. The city has a vibrant theatre scene and is an important centre for the Bharata Natyam, a classical dance form. The Tamil film industry, the second largest film industry in India, is based in Chennai.

Mahabalipuram, derived from 'Mamallapuram' is a town in Kancheepuram district in the Indian state of Tamil Nadu. It has an average elevation of 12 metres (39 feet). Mahabalipuram was a 7th century port city of the South Indian dynasty of the Pallavas around 60 km south from the city of Chennai in Tamil Nadu. The name Mamallapuram is believed to have been given after the Pallava king Narasimhavarman I, who took on the epithet Maha-malla (great wrestler), as the favourite sport of the Pallavas was wrestling. It has various historic monuments built largely between the 7th and the 9th centuries, and has been classified as a UNESCO World Heritage Site. The temples of Mamallapuram, portraying events described in the Mahabharata, built largely during the reigns of Narasimhavarman and his successor Rajasimhavarman, showcase the movement from rock-cut architecture to structural building. The mandapa or pavilions and the rathas or shrines shaped as temple chariots are hewn from the granite rock face, while the famed Shore Temple, erected half a century later, is built from dressed stone. What makes Mamallapuram so culturally resonant are the influences it absorbs and disseminates.

Tamil Nadu is one of the 28 states of India. Its capital is Chennai, the largest city. Tamil Nadu lies in the southernmost part of the Indian Peninsula and is bordered by the union territory of Pondicherry, and the states of Kerala, Karnataka, and Andhra Pradesh. It is bound by the Eastern Ghats in the north, the Nilgiri, the Anamalai Hills, and Palakkad on the west, by the Bay of Bengal in the east, the Gulf of Mannar, the Palk Strait in the south east, and by the Indian Ocean in the south. Tamil Nadu is the eleventh largest state in India by area and the seventh most populous state. It is the fourth largest contributor (as of 2010) to India's GDP and ranks tenth in Human Development Index as of 2006. Tamil Nadu is also the most urbanised state in India. The state has the highest number (10.56%) of business enterprises and stands second in total employment (9.97%) in India,[6] compared to the population share of about 6%. The region has been the home of the Tamil people since at least 500 BCE. Its official language Tamil has been in use in inscriptions and literature for over 2000 years. Tamil Nadu is home to many natural resources, Hindu temples of Dravidian architecture, hill stations, beach resorts, multi-religious pilgrimage sites and eight UNESCO World Heritage Sites.