New Delhi, Aug. 31 -- Prime Minister Narendra Modi, in the 125th edition of his monthly radio programme 'Mann ki Baat', announced on Sunday that on September 17, Hyderabad Liberation Day will be observed. It is to remember the courage of all those heroes who took part in 'Operation Polo'.

Operation Polo was a military operation in 1948 to annexe the princely state of Hyderabad, led by Sardar Vallabhbhai Patel, to integrate it into the Indian Union after the Nizam's resistance to joining India. The five-day campaign, often referred to as the "Police Action," successfully ended the Nizam's rule and secured Hyderabad's territory within India.

In the 125th 'Mann Ki Baat' episode, PM Modi played an audio clip of Sardar Vallabhbhai Patel. In ...