Dropdown list inserting value in 0 th position

  ddlSearchBuisnessPlan.DataValueField = "BusinessPlanPkID";
                ddlSearchBuisnessPlan.DataTextField = "BusinessPlanName";
                ddlSearchBuisnessPlan.DataBind();
                ListItem l = new ListItem("Buisness Plan", "0");
                ddlSearchBuisnessPlan.Items.Insert(0, l);