Chetan Bhagat's novel Revolution 2020 explores corruption in Indian society through the stories of characters Gopal, Raghav, and Aarti. The novel highlights corruption in the education system, with politicians using funds meant for projects to illegally establish for-profit colleges. It also depicts corruption in politics, showing politicians shielding their corrupt activities by pressuring media organizations. Overall, the novel emphasizes the need for reforms to increase transparency and accountability in governance, business, and society in India.