The Volatility Index or VIX, which reflects markets' perceptions of risk in the short term, jumped 21% to 20.84 on Monday, indicating that further declines are likely.
On Tuesday, Indian equity indexes fell for the sixth straight day, mirroring lower global stocks.
At the time of writing, Bitcoin was trading at $38,828.93, down 7.78 percent in the last 24 hours, while Ether fell below the $3,000 level.