The Simon Commission was boycotted because it included no Indian members and was seen as a blatant disregard for Indian self-governance. It was set up to recommend constitutional reforms, yet excluded Indian representation. This sparked nationwide protests with slogans like "Simon Go Back."
Leaders like Lala Lajpat Rai led demonstrations, during which he was fatally injured by police. The backlash intensified demands for complete independence and led to the Nehru Report, India’s first attempt at drafting its own constitution.