dataGridView1.DataSource = bindingSource1;

Describing JKSBSCHEMA.AUTOPAYMENT_VIEW....

NAME                            Null?     Type
------------------------------- --------- -----
ISPAY                                     NUMBER
BANKACCOUNTID                   NOT NULL  CHAR(5)
ACCOUNTID                       NOT NULL  CHAR(15)
ACCOUNTNAME                               VARCHAR2(75)
PAYINSTRUCTIONLINE1                       VARCHAR2(100)
PAYINSTRUCTIONLINE2                       VARCHAR2(100)
ADDITIONAL_PAY_INSTRUCTION                VARCHAR2(151)
CLIENTBANKID                              CHAR(8)
CLIENTBANKACCOUNTNO                       VARCHAR2(18)
SWIFTCODE                                 VARCHAR2(20)
XSACTDATE                       NOT NULL  DATE
PMODEID                         NOT NULL  CHAR(1)
NORMALPAYABLE                             NUMBER(12,2)
SOPAYABLE                                 NUMBER(12,2)
FINALPAYABLE                    NOT NULL  NUMBER(12,2)
REFNO                                     NUMBER(*,0)
CONTRACT_VALUE                            NUMBER
SETTLEMENTCTRLID                          CHAR(2)
SOQTY                                     NUMBER(12,0)
IS_PLEDGE_GROUP                           NUMBER
EQUITYID                                  CHAR(9)
COURT_CASE_STATUS                         NUMBER(1,0)

private void loadPaymentData()
        {
            dataGridView1.AutoGenerateColumns = false;

            if (dataGridView1.CurrentSelectedRow != null)
            {
                lastRowPosition = dataGridView1.CurrentSelectedRow.Index;
            }

            try
            {
                Init(null);


                Thread.CurrentThread.CurrentCulture = CultureInfo.GetCultureInfo("en-US");

                oDsBank = ExecuteDataSet("SELECT * FROM JKSBSCHEMA.BANKACCOUNT WHERE BANKACCOUNTNO IS NOT NULL", CommandType.Text, null);
                bindingSource3.DataSource = oDsBank;
                bindingSource3.DataMember = oDsBank.Tables[0].TableName;

                oDsPmode = ExecuteDataSet("SELECT * FROM JKSBSCHEMA.PMODE", CommandType.Text, null);
                bindingSource2.DataSource = oDsPmode;
                bindingSource2.DataMember = oDsPmode.Tables[0].TableName;

                oDs = ExecuteDataSet("SELECT * FROM JKSBSCHEMA.AUTOPAYMENT_VIEW", CommandType.Text, null);

                try
                {
                    dSettleDate = Convert.ToDateTime(oDs.Tables[0].Rows[0]["XSACTDATE"].ToString());
                    label3.Text = string.Format("Data for Settlement Date {0}", dSettleDate.ToString("dd-MMM-yyyy"));
                    this.Text = string.Format("Data for Settlement Date {0}; {1} Records Loaded", dSettleDate.ToString("dd-MMM-yyyy"), oDs.Tables[0].Rows.Count.ToString());
                }
                catch (Exception)
                {
                    label3.Text = "Error Occured while loading data";
                }

                bindingSource1.DataSource = oDs;
                bindingSource1.DataMember = oDs.Tables[0].TableName;

                PMODEID.DataSource = oDsPmode.Tables[0];
                PMODEID.ValueMember = "PMODEID";
                PMODEID.DisplayMember = "PMODEDESC";

                BANKACCOUNTID.DataSource = oDsBank.Tables[0];
                BANKACCOUNTID.ValueMember = "BANKACCOUNTID";
                BANKACCOUNTID.DisplayMember = "BANKACCOUNTNAME";

                dataGridView1.DataSource = bindingSource1; //Error here

                updateStat();

                label1.Text = string.Format("No. of Records to be processed {0}", oDs.Tables[0].Rows.Count.ToString("N0"));

                dataGridView1.Sort(dataGridView1.Columns["ACCOUNTID"], ListSortDirection.Ascending);

                if ((lastRowPosition > 0) && (dataGridView1.Rows.Count > lastRowPosition))
                {
                    try
                    {
                        dataGridView1.CurrentCell = dataGridView1.Rows[lastRowPosition].Cells[0];
                    }
                    catch (Exception)
                    {
                        dataGridView1.CurrentCell = dataGridView1.Rows[0].Cells[0];
                    }
                }
            }
            catch (Exception er)
            {
                throw er;
            }
        }