Rabindranath Tagore had renounced his knighthood because ________.

The correct answer is Option (4) → of the Jallianwala Bagh tragedy

Rabindranath Tagore renounced his knighthood in protest of the Jallianwala Bagh tragedy, which occurred on April 13, 1919. During this event, British troops, under the command of General Dyer, fired upon a large, non-violent gathering of Indians in Amritsar, resulting in the death of hundreds of unarmed civilians. Tagore's decision to relinquish his knighthood was a powerful statement against the brutality and oppression of British colonial rule, reflecting his deep sense of moral outrage and solidarity with the Indian independence movement.