As everybody these days, i am also  into the share market business since one year using HDFCSec trading platform. When i opened the 3-in-1 account with HDFC, it was just supporting trading in NSE, nothing else. Now it supports most of the things except Mutual Fund trading. The interface of this trading system was not so elegant and the software used was php for information and JSP for trading. Now seems to be like they are in the process of changing their user interface and the software also. The new platform using .NET it seems and the interface is looking good. The main page looks similar to Reliance’s money trading site. The charting is better than old charts. Seems like both version (php/.NET) of the trading platform are available, and defaultly it will goto php version of the site. You can access this site at http://hdfcsec.com/Investor.aspx

 Update: As of now only information related to market is available in the new version and the trading is still refering old site.