During whose tenure as the Viceroy of India were the great martyrs Bhagat Singh, Sukhdev and Rajguru hanged?

The great martyrs Bhagat Singh, Sukhdev, and Rajguru were executed on March 23, 1931, in connection with the Lahore Conspiracy Case [2][t2]. This event occurred during the tenure of Lord Irwin, who served as the Viceroy of India from 1926 to 1931 [t1][t4]. The executions took place just six days before the Karachi session of the Indian National Congress, which was convened to endorse the Gandhi-Irwin Pact [c3]. Lord Irwin's administration was marked by significant nationalist activities, including the Simon Commission's visit, the Dandi March, and the Civil Disobedience Movement [t4][t7]. While other Viceroys like Lord Curzon (1899–1905), Lord Minto (1905–1910), and Lord Chelmsford (1916–1921) oversaw different phases of the colonial administration, it was specifically under Irwin's term that the revolutionary trio was hanged [c2][c5][t4].

Sources

1. [1] Rajiv Ahir. A Brief History of Modern India (2019 ed.). SPECTRUM. > Chapter 17: Emergence of Swarajists, Socialist Ideas, Revolutionary Activities and Other New Forces > Action against the Revolutionaries > p. 351
2. [2] Rajiv Ahir. A Brief History of Modern India (2019 ed.). SPECTRUM. > Chapter 19: Civil Disobedience Movement and Round Table Conferences > Karachi Congress Session—1931 > p. 381