Mumbai, Feb 4 (IANS) The key Indian equity indices opened on a negative note on Thursday with the BSE Sensex falling over 180 points.

Selling pressure was witnessed in banking, finance, IT, telecom and healthcare stocks, while auto, oil and gas and power stocks rose.

Around 9.32 a.m., Sensex was trading at 50,071.11, lower by 184.64 points or 0.37 per cent from its previous close of 50,255.75.

It opened at 50,212.25 and has so far touched an intra-day high of 50,250.17 and a low of 50,031.66 points.

The Nifty50 on the National Stock Exchange was trading at 14,735.35, lower by 54.60 points or 0.37 per cent from its previous close.

--IANS rrb/sn/ksk/