The stock of Emkay Global Financial Services plunged 10 per cent, the maximum permissible limit, after the NSE disabled it from trading following some erroneous trading, which triggered the market collapse. 

The stock is ruling at Rs 31.1, down 9.86 per cent over the previous day's close.        

"Emkay Global Financial Services has closed out the positions arising out of erroneous trades smoothly.  The member has been disabled from trading," said the NSE in a notification.