Here is a small trick,
..
Right click on the Zerodha Trader icon on the desktop. Click on Properties.
In properties, click on open file location.. You will see a folder called NEST Plugins.. Click on this...
You will see a document called Plussettings.. double click on this..
You will see a link No of days= , you will see a number , this can be changed upto a maximum of 22.
If your system can handle it, you can increase this all the way upto 22 and you will see intraday data for that period.. if your system can't, choose a time period that your system can.. I think 7 to 10 intraday data is more than enough..