Mumbai, July 21 -- Indian benchmark equity indices ended marginally lower on Tuesday as investors remained cautious due to geopolitical uncertainties and booked profits after the recent market rally.

The BSE Sensex settled at 77,470.11, down 238.41 points or 0.31 per cent, while the NSE Nifty 50 closed at 24,187.70, losing 50.80 points or 0.21 per cent.

Among the sectoral indices on the NSE, Nifty Auto gained 0.93 per cent, Nifty Metal rose 0.63 per cent, Nifty Pharma advanced 0.34 per cent and Nifty Private Bank edged up 0.07 per cent.

On the downside, Nifty PSU Bank fell 0.88 per cent, Nifty IT declined 0.61 per cent, Nifty FMCG slipped 0.31 per cent, Nifty Financial Services lost 0.16 per cent and Nifty Media eased 0.04 per cent.

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