Which are the worst stock market crashes in Indian history?

In March 2020, Indian stock market saw one of its biggest-ever falls due to COVID-19 as lockdown was declared. Before that, Sensex crashed in 2016 because of global economic challenges, high NPAs in Indian banking sector and demonetisation. The devaluation of Chinese yuan in 2015 and the 2008 financial crisis also triggered one of the worst sell-offs in Indian markets.