The stock market crash of 2020 is officially here. On 20th March, as soon as trading began at around 9:30 am on Dalal Street, it had to be halted for around forty-five minutes. Both Nifty and Sensex crashed. Sensex fell to 20,687.52 by 3,090 points. Nifty fell below 10% to under 8,700 points. Once trading resumed …