Kalpana Datta (also known as Kalpana Joshi) was a courageous Indian revolutionary who played an active role in the armed resistance against British rule. She was born on 27 July 1913 in Chittagong (now in Bangladesh). Inspired by nationalist ideas at a young age, she joined the revolutionary movement while still a student.

Kalpana Datta became a member of the Chittagong Revolutionary group led by Surya Sen (Masterda). She took part in the historic Chittagong Armoury Raid (1930), a bold attempt to seize British arms and disrupt colonial administration. Kalpana also participated in secret operations, including plans to attack British institutions, showing exceptional bravery at a time when women’s participation in armed struggle was rare.

In 1931, she was arrested by the British and sentenced to life imprisonment. During her trial and imprisonment, she remained fearless and committed to the cause of independence. Her courage made her a symbol of women’s participation in India’s revolutionary movement.

After her release from prison, Kalpana Datta married fellow revolutionary Puran Chand Joshi and later shifted her focus toward social and political work. She remained committed to progressive ideals and public service throughout her life.

Kalpana Datta passed away on 8 February 1995. She is remembered as a brave revolutionary woman who broke social barriers and proved that courage, sacrifice, and patriotism know no gender. Her life continues to inspire generations to stand up for freedom and justice.