public JsonResult Get_HSN_GST(string HSNSACCode1)
        {
            try
            {
                DataSet ds1 = new DataSet();
                DataSet ds  = objbl.Bind_HSNID(HSNSACCode1, "%");
                ds1 = objbl.Bind_GSTPer(Convert.ToString(ds.Tables[0].Rows[0]["HSNCodeID"].ToString()));

                foreach (DataRow dr in ds1.Tables[0].Rows)
                {
                    purchase.Add(
                        new Purchase
                    {
                        gst1 = Convert.ToString(dr["GSTRate"]),
                    });
                }
            }
            catch (Exception ex)
            {
            }
            return(new JsonResult {
                Data = purchase, JsonRequestBehavior = JsonRequestBehavior.AllowGet, MaxJsonLength = 86753090
            });
        }