Which princely state was invaded by the Indian Army on September 13, 1948, under 'Operation Polo'?
Q1. Which princely state was invaded by the Indian Army on September 13, 1948, under 'Operation Polo'?
Answer: State of Hyderabad Deccan
Explanation: Operation Polo (September 13–18, 1948) was the Indian military action — officially termed a "police action" — that forced the Nizam of Hyderabad Deccan to accede to India.