To create a tarball (for example, a file called A3.tgz) of your current working
directory, you may use the command:
     tar cvfz A3.tgz ./*

To verify the tarball, you may use the command:
     tar tvfz A3.tgz

and to extract in to the current working directory:
     tar xvfz A3.tgz

All these commands should work on any Linux machine, yell at the sysadm if they
do not. 

For tar on Windows please see http://gnuwin32.sourceforge.net/packages/gtar.htm.

Alternatively, you can mount your CSC home directory on to your Windows 
desktop/laptop 
(see http://www.cc.iitd.ernet.in/CSC/index.php?option=com_content&view=article&id=95&Itemid=121 for a howto), 
transfer the files to you CSC home and submit from a Linux machine in CSC.

Use ``Google search'' to figure out other ways.


cheers,