Indian benchmark equity indices, Sensex and Nifty, opened in the red on Friday. The BSE Sensex crashed 1,000 points, or 1.34%, to 73,602, while the Nifty50 declined to 22,270 level around 10 am.The market capitalisation of all listed companies on the BSE dropped by Rs 7.16 lakh crore to Rs 385.94 lakh crore.