Hi Gopi,
Yes, the version 3.3 can be installed in the machine while you have 4.1. But, you should be able to use only one version at a time.
Please refer the following thread about how to install and use multiple versions of Syncfusion in the same system.
http://www.syncfusion.com/Support/Forums/message.aspx?MessageID=47799
Please let me know if you need any help.
Regards,
Nanda