Correct Answer: 1948

Solution : The correct option is 1948

In 1948, Hyderabad, a princely state, was incorporated into the Indian Union. "Operation Polo," often referred to as "Police Action," was the military action that brought Hyderabad into the Indian Union. Despite the conditions and the Indian government's military intervention, the integration of Hyderabad was finalized in September 1948, despite the initial aspirations of its Nizam, Mir Osman Ali Khan.