Explanation: To understand the context of the statements provided, it is essential to delve into the historical and administrative aspects of Delhi and the dynasties that ruled parts of India.
1. **Delhi as a City and National Capital Territory**: Delhi is a unique administrative entity in India. It is both a city and a union territory, known as the National Capital Territory of Delhi (NCT). This dual status is significant because it means Delhi has a special administrative structure that combines the governance of a city with the autonomy of a union territory. The city of Delhi is the capital of India, housing the seat of the central government, including the President's residence, the Parliament, and various ministries.
2. **Muhammad Ghori and the Slave Dynasty**: Muhammad Ghori, also known as Muhammad of Ghor, was a significant figure in the history of the Delhi Sultanate. Although he was not the first emperor of the Slave Dynasty, he laid the foundation for the Delhi Sultanate by conquering parts of northern India. The Slave Dynasty, also known as the Mamluk Dynasty, was the first of the five dynasties that ruled the Delhi Sultanate. The dynasty was founded by Qutb-ud-din Aibak, who was a slave of Muhammad Ghori and later became the first Sultan of Delhi. Therefore, while Muhammad Ghori was not the first emperor of the Slave Dynasty, he played a crucial role in establishing the Delhi Sultanate, which eventually led to the rise of the Slave Dynasty.
3. **Dharmpala and Kanauj**: Dharmpala was a ruler of the Pala Empire, which was based in eastern India. During his reign, Dharmpala attempted to expand his empire and briefly held the city of Kanauj, which was a significant political and cultural center in northern India. This period of control over Kanauj was short-lived but marked an important phase in the political dynamics of the region.
In summary, all three statements are correct and provide important historical and administrative information about Delhi and the dynasties that ruled parts of India. The first statement highlights the unique administrative status of Delhi, the second statement correctly identifies Muhammad Ghori's role in the establishment of the Delhi Sultanate, and the third statement accurately describes Dharmpala's brief control over Kanauj. Therefore, the correct answer is (C) Only 1, 2, 3.