The lady Congress leader who went under- ground during the Quit India Movement was

Aruna Asaf Ali is widely celebrated as the 'Heroine of the 1942 Movement' for her daring act of hoisting the Indian National Congress flag at Gowalia Tank Maidan in Bombay on August 9, 1942, following the arrest of major leaders [t1][t2]. After this event, she went underground to evade arrest and continued her operations covertly, editing the clandestine 'Congress Bulletin' and coordinating resistance efforts [t2][t8]. While Sucheta Kripalani also participated in underground activities [c1][t3], Aruna Asaf Ali is the most prominent figure associated with this specific role in the Quit India Movement. Other leaders like Sarojini Naidu and Vijayalakshmi Pandit were arrested early in the movement [t1][t4]. Aruna Asaf Ali's refusal to surrender until 1946, despite Mahatma Gandhi's request, solidified her legacy as a leading underground revolutionary [t1].

Sources

1. [1] https://indianexpress.com/article/upsc-current-affairs/upsc-essentials/aruna-asaf-ali-quit-india-movement-upsc-9456828/
2. [2] https://www.britannica.com/biography/Aruna-Asaf-Ali
3. [3] Rajiv Ahir. A Brief History of Modern India (2019 ed.). SPECTRUM. > Chapter 39: After Nehru... > Quit India Movement > p. 814