The Swaraj Party was founded by:

Motilal Nehru and Chittaranjan Das

The correct answer is Option 4- Motilal Nehru and Chittaranjan Das

Motilal Nehru and Chittaranjan Das.

The Swaraj Party was founded on January 1, 1923, by a group of Indian National Congress (INC) members who were dissatisfied with the party's decision to withdraw from the legislative councils established by the Government of India Act 1919. The party's two most prominent leaders were Motilal Nehru, who served as its first president, and Chittaranjan Das, who served as its first vice president.

The Swaraj Party's main goal was to achieve swaraj, or self-rule, for India through constitutional means. The party's members entered the legislative councils in order to obstruct the work of the government and to demand reforms. The party was successful in winning a number of seats in the 1923 elections, and it played a major role in the Indian independence movement.

The other options are incorrect. Sukhdev and Rajguru were two of the Bhagat Singh's revolutionary comrades who were executed by the British in 1931. Aruna Asaf Ali and Subhash Chandra Bose were both members of the INC, but they were not involved in the founding of the Swaraj Party. Bhimrao Ambedkar and Sardar Vallabhbhai Patel were both prominent leaders of the INC, but they did not support the Swaraj Party's methods.