The correct answer is Kanyakumari.
Kanyakumari is a district in Tamil Nadu, India. It is located in the extreme south of the state, on the Indian Ocean coast. The district has a population of over 2.5 million people. The district headquarters is the town of Kanyakumari.
Kanyakumari is a popular tourist destination. The town of Kanyakumari is located at the southernmost tip of India. It is a popular spot for watching the sunrise and sunset. The town is also home to a number of temples and churches.
The district of Kanyakumari is known for its high HDI. The HDI is a measure of human development. It is calculated based on life expectancy, education, and per capita income. The HDI of Kanyakumari is 0.732, which is higher than the national average of 0.647.
The following are the other options in the question:
- Chennai: Chennai is the capital of Tamil Nadu. It is the fourth most populous city in India. Chennai is a major economic and cultural center. The HDI of Chennai is 0.723.
- Madurai: Madurai is a city in Tamil Nadu. It is the third most populous city in the state. Madurai is a major cultural and religious center. The HDI of Madurai is 0.714.
- Ariyalur: Ariyalur is a district in Tamil Nadu. It is located in the central part of the state. Ariyalur is a rural district. The HDI of Ariyalur is 0.673.