The correct option is Madan Mohan Malaviya and Krishna Kant, who provided legal defense to the individuals arrested following the Chauri Chaura incident in 1922. This event, which involved a violent clash between the police and protesters during the Non-Cooperation Movement, reflected the broader struggle for independence and highlighted the role of prominent leaders in advocating for justice. Malaviya, a key figure in the Indian National Congress and a prominent lawyer, along with Krishna Kant, exemplified the efforts of Indian nationalists to defend civil rights and undermine colonial authority, aligning with the UPSC syllabus’s focus on the socio-political context of the independence movement.