         <p:outputLabel value="#{b.createdAt}" >
                                <f:convertDateTime pattern="dd MMM yyyy HH:mm:ss"></f:convertDateTime>
                            </p:outputLabel>
                        </p:column>
                        <p:column>
                            <f:facet name="header" >
                                <p:outputLabel value="Bill No" />
                            </f:facet>
                            <p:outputLabel value="#{b.deptId}" />
                    