hi all,
Refer the following links
http://ashwaniashwin.wordpress.com/2014/04/03/dependent-picklist-optionset-in-crm-2013/
http://blogs.msdn.com/b/paf/archive/2011/04/21/how-to-easily-create-dependent-picklist-in-crm-2011.aspx
http://blogs.msdn.com/b/paf/archive/2011/09/29/dependent-picklist-recurrent-problems.aspx
http://msdn.microsoft.com/en-us/library/gg594433.aspx
CRM 2011 TreeView for Dependent Picklist
Refer the following links
http://ashwaniashwin.wordpress.com/2014/04/03/dependent-picklist-optionset-in-crm-2013/
http://blogs.msdn.com/b/paf/archive/2011/04/21/how-to-easily-create-dependent-picklist-in-crm-2011.aspx
http://blogs.msdn.com/b/paf/archive/2011/09/29/dependent-picklist-recurrent-problems.aspx
http://msdn.microsoft.com/en-us/library/gg594433.aspx
CRM 2011 TreeView for Dependent Picklist