Hi Attiq,
You can do it through query string like if you are redirecting to Report.aspx. You can add
this code in your gridview column for which you want the crystal report
<asp:hyperlink id="HyperLink1" runat="server" font-underline="true" navigateurl="<%# Eval("Assigned_To", "~/Report.aspx?column1={0}")</pre></xml>" xmlns:asp="#unknown"></asp:hyperlink>