The Indian equity market ended the week on a negative note on Friday amid weak global cues and fresh US tariffs on certain pharmaceuticals imports. Nifty Pharma fell 470 points or 2.14 per cent. Sensex slips 733 pts, ends at 80,426 after sell-off .Nifty closed at 24,654.70, down 236.15 points or 0.95 per cent.