The level of 10,400 is a significant support level as the 100-day EMA and rising trendline support are placed around this level. On the upper side, the level of 10,600-10,640 would be seen as a major hurdle for the Nifty. Top stocks to watch out today: Zee Learn, MT Educare, Sunteck Realty, Indiabulls Real Estate, Torrent Power, Indo Count Industries, Yes Bank and PVR.