Chandra Shekhar Azad (About this sound /t͡ʃʌnd̪ɾʌː ʃeːkʰʌr ɑːzɑːd/; 23 July 1906 – 27 February 1931), popularly known as Azad ("The Free"), was an Indian revolutionary who reorganised the Hindustan Republican Association under the new name of Hindustan Socialist Republican Association (HSRA) after the death of its founder, Ram Prasad Bismil, and three other prominent party leaders, Roshan Singh, Rajendra Nath Lahiri and Ashfaqulla Khan.