The Indian stock market ended on a flat note on Tuesday as Sensex was down marginally by 53.49 points at 82,391.72 while the Nifty closed up by one point at 25,104.25. Buying was seen in IT stocks during the session. The Nifty IT index gained 1.67 per cent. Pharma, FMCG, metal, media, energy and commodities indices closed in the green.