The correct answer is option 1 - Swadeshi movement, which occurred earliest in the Indian freedom struggle. The Swadeshi movement, also known as the Swadeshi Andolan, was a campaign launched in 1905 to oppose the partition of Bengal by the British colonial government. The movement aimed at promoting Indian goods and boycotting British goods and institutions, with the goal of achieving self-reliance and economic independence.

Option 2 - Shifting of imperial capital from Calcutta to Delhi - This event took place in 1911, which was after the Swadeshi movement.

Option 3 - Lucknow Pact - The Lucknow Pact was an agreement signed in 1916 between the Indian National Congress and the All India Muslim League. It aimed at promoting Hindu-Muslim unity in the national struggle for independence. Thus, it occurred after the Swadeshi movement.

Option 4 - Khilafat movement - The Khilafat movement, launched in 1919, was a protest by Indian Muslims against the British government`s unjust treatment of the Ottoman Caliphate after World War I. This movement was closely linked with the Indian National Congress and the non-cooperation movement led by Mahatma Gandhi. The Khilafat movement also occurred