Explanation:

- The partition of Bengal in 1905 led to widespread protests. Indian nationalists supported the Swadeshi and boycott movement to oppose British policies.

- The Calcutta session of the Indian National Congress in 1906 officially supported the Swadeshi and boycott movement. This was a significant moment in the fight against British rule.

- The Congress session in Belgaum does not relate to the Swadeshi movement. It was where Mahatma Gandhi was elected president in 1924.

- The Karachi session in 1931 focused on fundamental rights and national economic policy after the Gandhi-Irwin Pact.

- The Congress session in Benaras is not associated with the Swadeshi movement directly.

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