Why did buying on margin contribute to the stock market crash?

Buying on margin contributed to the stock market crash because people were borrowing most of the money to buy shares. This meant they were investing with debt instead of their own funds. When stock prices started falling, investors could not repay the borrowed money, and brokers forced them to sell their shares. These mass sell-offs pushed prices down even faster, creating a chain reaction that led to a market collapse.

If you want to understand such stock market concepts in a clearer and more practical way, you can check out the Master Blaster of Stock Market-Techno Funda Investor course taught by CA Tushar Makkar.