Indian Markets booked handsome profit today that suggests markets have become more volatile. Market sentiments will be influenced tomorrow by the announcement of Q3 December 2011 gross domestic product (GDP) by the government. Apart from domestic events, flobal developments too will continue to influence the market sentiments. For Nifty intraday trading immediate resistance exist at 5,425-5,450 and then 5,500 level. Downside support exists at 5,325 and then 5,275.