The Dot Com Crisis was a stock market bubble in the late 1990s driven by speculation in internet-based companies, leading to a massive market crash in 2000 when the bubble burst.
The Ketan Parekh scam involved stock market manipulation in the early 2000s, where Ketan Parekh drove up stock prices using a network of banks and institutions, causing a significant market crash.
The Harshad Mehta scam was a massive financial scandal in the 1990s where stockbroker Harshad Mehta manipulated stock prices using fraudulent bank receipts, causing a market crash.