Explanation: Shahjahanabad, also known as Old Delhi, is a historical city that was established by Mughal Emperor Shah Jahan in 1639. It served as the capital of the Mughal Empire until the British shifted the capital to Calcutta in 1772. The city was designed with a grand urban plan, featuring a walled city with numerous gates, palaces, mosques, and bazaars. The Red Fort and Jama Masjid are two of the most prominent landmarks in Shahjahanabad, reflecting the architectural grandeur of the Mughal era.
The Mughal Empire, which ruled much of the Indian subcontinent from the 16th to the 19th century, had several capitals throughout its history. The choice of capital often depended on the reigning emperor and the political and strategic needs of the time. Shah Jahan, known for his architectural achievements, chose to build a new city to serve as the capital, which he named Shahjahanabad. This city was located on the banks of the Yamuna River and was designed to be a symbol of Mughal power and grandeur.
The other options provided in the question are incorrect for the following reasons:
- Tughlaqabad was the capital of the Tughlaq dynasty in the 14th century, not the Mughal Empire.
- Fatehpur Sikri was the capital of the Mughal Empire under Akbar from 1571 to 1585, but it is located in Agra, not in Delhi.
- Daulatabad was a significant city during the Delhi Sultanate and later under the Bahmani Sultanate, but it is located in present-day Maharashtra, not in Delhi.
Understanding the historical context and the urban planning of Shahjahanabad is crucial for comprehending the development of Delhi as a city and its significance in Mughal history. The city's layout, architecture, and historical monuments continue to be important landmarks and tourist attractions in modern-day Delhi.