Q. During which session of congress Chittaranjan Das was elected its President but Hakim Ajmal Khan presided over the session because he was arrested well before the session started?
Answer: Ahmedabad session of 1921
Notes: During Ahmedabad Session of INC (1921) , Chittaranjan Das was elected its President but Hakim Ajmal Khan presided over the session because C. R. Das was arrested well before the session started for supporting the non- cooperation movement.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 96 in 27. Freedom Struggle - Important Events [1905-1947] in above course in App.