Solution:The Ghadar Movement was an early 20th century, international political movement organised by expatriate Indians to overthrow British rule in India. The official date for the birth of the movement was marked by a meeting on 21 April 1913.The Chittagong armoury raid, also known as the Chittagong uprising, was an attempt on 18 April 1930 to raid the armoury of police and auxiliary forces from the Chittagong armoury in the Bengal Presidency of British India (now in Bangladesh) by armed Indian freedom fighters led by Surya Sen.
During the World War-I (1914-1918), an organisation was founded in Germany, called the Berlin Committee. After 1915, it was renamed the Indian Independence Committee. On April 8, 1929, Bhagat Singh and Batukeshwar Dutt hurled two bombs into the chamber of the Central Legislative Assembly, while it was in session.