Maharaja was the most common title used for the rulers of princely states in India.

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

Hyderabad was also the most populous princely state in India, with a population of 16,338,534 in 1941.

Hyderabad was the richest princely state in India, with an annual revenue of Rs. 26 crores in 1941.

Hyderabad was the most powerful princely state in India, with a large army and a strong economy.

Mysore was the first princely state to sign a treaty with the British in 1799.

Kashmir was the last princely state to sign a treaty with the British in 1846.

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 was only after a military operation that it finally agreed to do so.

Operation Polo was the name of the operation that was launched by the Indian government to integrate Hyderabad into the Indian Union.

Major General J.N. Chaudhuri was the leader of the Indian forces during Operation Polo.

Operation Polo lasted for 5 days, from September 13 to September 18, 1948.

Operation Polo ended with Hyderabad surrendering to the Indian forces.

Operation Polo led to the integration of Hyderabad into the Indian Union, which was a major step in the consolidation of the Indian state.