Explanation: In the context of Indian geography and history, the status of Union Territories and states is an important aspect to understand. A Union Territory is an administrative division of India that is governed directly by the Union Government, as opposed to a state, which has its own elected government. Over time, some Union Territories have been granted statehood, reflecting changes in political and administrative structures.
Delhi, the capital of India, was initially a Union Territory. It was given a special status in 1952, becoming the Chief Commissioner's Province of Delhi. In 1956, it was reorganized as a Union Territory. In 1991, the National Capital Territory of Delhi (NCT) was formed, giving it a greater degree of autonomy while still remaining under the direct administration of the Union Government.
Goa, on the other hand, was a Portuguese colony until 1961 when it was liberated and became a Union Territory. It was granted statehood in 1987, becoming the 25th state of India. This transition from a Union Territory to a state was a significant political and administrative change, reflecting the broader process of state formation in India.
The other options listed in the question are incorrect because they either refer to territories that have not been granted statehood (such as Chandigarh, Puducherry, and Dadra and Nagar Haveli) or they mix up the historical status of different territories. For example, Chandigarh has always been a Union Territory and has not been granted statehood, while Puducherry and Dadra and Nagar Haveli remain Union Territories.
Understanding the historical context and the process of state formation in India is crucial for comprehending the current administrative structure of the country. This knowledge is particularly important for students preparing for competitive examinations such as the UPSC Civil Services, State PSC Exams, and Bank PO Exams, where questions on Indian geography and history are common.