Explanation: Population density is a critical demographic measure that indicates the number of people living per unit area, typically expressed as people per square kilometer. In the context of Union Territories (UTs) in India, understanding population density is essential for urban planning, resource allocation, and policy-making.
Delhi, as a Union Territory, stands out for having the highest population density among all UTs. This is primarily due to its status as a major metropolitan city with a large urban population concentrated in a relatively small land area. The city's rapid urbanization, economic activities, and infrastructure development have led to a high concentration of people in specific areas, contributing to its high population density.
In contrast, other UTs like Andaman and Nicobar Islands, Daman and Diu, and Chandigarh have lower population densities. Andaman and Nicobar Islands, despite being a UT, have a vast land area with a sparse population distribution, leading to a lower population density. Daman and Diu, although small, have a less concentrated population, resulting in a lower density compared to Delhi. Chandigarh, being a planned city, has a more balanced distribution of population and land use, which also contributes to a lower population density compared to the densely populated areas of Delhi.
Understanding these differences in population density is crucial for policymakers and urban planners. High population density can lead to challenges such as congestion, strain on infrastructure, and environmental issues, which need to be addressed through effective urban planning and resource management. Conversely, lower population densities can present opportunities for sustainable development and balanced growth.
In summary, Delhi's high population density is a result of its urban development and concentration of economic activities, making it the correct answer among the given options. This concept is essential for understanding urban demographics and planning in the context of Union Territories in India.