Mumbai, July 23 -- D-Street opened in the red on Thursday, with the Sensex falling over 300 points and the Nifty slipping below the 24,000 mark as Brent crude prices neared USD 97 per barrel amid escalating tensions between the US and Iran.

Brent crude surged USD 96.49/barrel while crude oil prices inched to USD 88.67 per barrel. Both the benchmark indices opened with a gap-down; Sensex was trading in the red at around 76,431.26-323.79 -0.42 per cent and Nifty was at around 23,909.85 level, down 86.40 points or 0.36 per cent.

Sectorally, Nifty FMCG and Midsmall IT & Telecom traded in the green, rest all indices were trading in the negative territory. Likewise, broad market indices were trading in the red.

On BSE, Eternal, Trent, M&M, I...