Solution:The raid was conducted in April 1930 by Surya Sen and involved 65 activists under the banner of Indian Republican army-Chittagong Branch. Surya Sen was arrested in Feb 1933 and hanged in Jan 1934.• The Chittagong Armoury Raid commenced on 18 April 1930, marking a significant act of heroism and resolute action.
• Seizing of Armouries: Led by Ganesh Ghosh, a group of revolutionaries captured the police armoury, while another team, led by Lokenath Bal, seized the Auxiliary Forces armoury.
• Operation: Around 65 revolutionaries participated in the operation, carried out under the banner of the Indian Republican Army, Chittagong Branch.
• Disruption of British Communications: Although they failed to find ammunition, the revolutionaries successfully cut telephone and telegraph lines, disrupting train services.
• Proclamation of Provisional Government: About 16 revolutionaries seized the European Club headquarters in Pahartali. With few members present due to Good Friday, the alarm was raised, and nearby troops responded, catching the revolutionaries off guard.
• Declaration of Independence: Following the raids, Surya Sen performed a military salute, raised the national flag, declared a Provisional Revolutionary Govern..