Market wrap: Top gainers and losers on Nifty and Sensex today

Sensex fell 561 points to 77,055 and Nifty 50 dropped 159 points to 24,052, wiping out nearly Rs 3 lakh crore from BSE-listed companies' market capitalisation. The sell-off was driven by escalating West Asia tensions pushing crude oil higher, the rupee breaching the 96 per dollar mark, and sustained foreign fund outflows. Auto, PSU Bank, IT and Realty led the decline, while pharma bucked the trend as investors rotated into defensives amid volatility.