In 1920, which of the following changed its name to “Swarajya Sabha”?

The correct option is All India Home Rule League.

Explanation:
In 1920, the All India Home Rule League elected Mahatma Gandhi as its President. Under his leadership and influence, the organization changed its name to Swarajya Sabha to reflect its goal of achieving self-rule (Swaraj) for India.

Key Highlights:
1. The Home Rule movement was originally launched in 1916 by Annie Besant and Bal Gangadhar Tilak to advocate for self-government in India.
2. In 1920, Mahatma Gandhi accepted the presidency of the Home Rule League.
3. The League was renamed Swarajya Sabha, signifying a renewed focus on achieving complete self-rule, before eventually merging with the Indian National Congress.