Hyderabad State was known for its:

Cosmopolitan culture
Opulent palaces and monuments
Administrative reforms
All of the above

The correct answer is: d) All of the above.

Hyderabad State was a princely state in India that existed from 1724 to 1948. It was founded by Nizam-ul-Mulk Asaf Jah I, who was the first Nizam of Hyderabad. The state was known for its cosmopolitan culture, opulent palaces and monuments, and administrative reforms.

Hyderabad State was a melting pot of cultures, with people from different religions and ethnicities living together in peace and harmony. The state was home to a number of important historical and cultural sites, including the Charminar, the Golconda Fort, and the Qutb Shahi Tombs. Hyderabad State was also known for its administrative reforms, which were implemented by the Nizams. These reforms helped to improve the lives of the people of Hyderabad State and made it a prosperous and well-governed state.

In 1948, Hyderabad State was merged with the Indian Union. However, the legacy of Hyderabad State continues to live on in the form of its culture, architecture, and administrative reforms.