The princely state of Hyderabad was brought under the Indian Union in the year ______.

1948

The correct answer is Option 4- 1948

The princely state of Hyderabad was brought under the Indian Union in the year 1948.

After the partition of India in 1947, the princely state of Hyderabad was one of the few states that remained independent. The Nizam of Hyderabad, Mir Osman Ali Khan, was reluctant to join India or Pakistan. However, the Indian government was determined to bring Hyderabad under its control.

In September 1948, the Indian army launched a military operation, code-named Operation Polo, to annex Hyderabad. The operation lasted for five days and resulted in the defeat of the Nizam's forces. Hyderabad was merged with the Indian Union on September 17, 1948.

The annexation of Hyderabad was a major step towards the unification of India. It also showed that the Indian government was determined to bring all princely states under its control.