The correct answer is Option 2- Delhi

The All-India Khilafat Conference in November 1919 took place in Delhi.

The All-India Khilafat Conference was a political movement launched by Indian Muslims in British India over British policy against Turkey and the planned dismemberment of the Ottoman Empire after World War I by Allied forces. Leaders participating in the movement included Shaukat Ali, Maulana Mohammad Ali Jauhar, Hakim Ajmal Khan, and Abul Kalam Azad who organised the movement to redress the grievances of Turkey.

The first All-India Khilafat Conference was held in Delhi in November 1919. The conference was attended by over 10,000 people from all over India. The conference passed a number of resolutions, including a demand that the British government restore the Ottoman Empire to its pre-war boundaries and that it protect the rights of Muslims in the Middle East.

The Khilafat Conference was a significant event in the Indian independence movement. It helped to unite Muslims and Hindus in a common cause and it helped to raise awareness of the Indian people's grievances against British rule. The Khilafat Conference also inspired other movements for independence and social reform in India.