Bind Gridview using LINQ.

 var query = from c in Employee_tbl
             where c.Name == "Rajesh"
             orderby c.Created_by descending
             select new { c.FirstName, c.LastName, c.Address,c.Phone_no,c.supervisor };
 Gridview1.DataSource = query.ToList();
 Gridview1.DataBind();