New Delhi, April 30 -- The Indian stock market witnessed a massive across-the-board selloff in morning trade on Thursday, 30 April, which dragged the benchmarks, the Sensex and the Nifty 50, lower by more than 1%.

The 30-share pack Sensex plunged nearly 1,150 points, or 1.5%, to an intraday low of 76,349, while the NSE counterpart Nifty 50 crashed more than 350 points, or 1.6%, to the day's low of 23,801.

The BSE 150 Midcap and the BSE 250 Smallcap indices also crashed more than 1% each.

Investors lost about Rs.9 lakh crore as the overall market capitalisation of BSE-listed firms dropped to Rs.460 lakh crore from nearly Rs.469 lakh crore in the previous session.

Let's take a look at 5 key factors behind the stock market crash today: ...