Hyderabad was the largest princely state in terms of area, covering an area of 214,190 square kilometers.

Hyderabad was also the most populous princely state, with a population of over 16 million people.

Hyderabad was the richest princely state, with an annual revenue of over 100 million rupees.

Hyderabad was the most powerful princely state militarily, with an army of over 100,000 soldiers.

Travancore was the most progressive princely state, with a high literacy rate, a well-developed infrastructure, and a strong social welfare system.

Mysore was the first princely state to sign a treaty with the British East India Company, in 1761.

Hyderabad was the last princely state to sign a treaty with the British East India Company, in 1853.

Travancore was the first princely state to join the Indian Union, in 1947.

Hyderabad was the last princely state to join the Indian Union, in 1948.

Hyderabad was the most reluctant princely state to join the Indian Union, and it took military action to force the Nizam of Hyderabad to accede to the Indian Union.

Hyderabad was the most loyal princely state to the British Raj, and it remained loyal even after the Indian National Congress launched the Quit India Movement in 1942.

Travancore was the most active princely state in the Indian independence movement, and it was home to many prominent leaders of the Indian National Congress.

Kashmir was the most affected princely state by the partition of India, as it was divided between India and Pakistan.

Travancore was the most successful princely state in integrating into the Indian Union, as it was able to maintain its own identity and culture while still becoming a part of the larger Indian nation.

Hyderabad was the most unsuccessful princely state in integrating into the Indian Union, as it was unable to maintain its own identity and culture and was eventually merged into the state of Andhra Pradesh.