Hi Sindhuja,
If you're using sap.suite.ui.commons.BusinessCard control, you have to include sap.suite.ui.commons library in your bootstrap like below -
<script id="sap-ui-bootstrap" src='https://sapui5.hana.ondemand.com/resources/sap-ui-core.js' data-sap-ui-theme="sap_bluecrystal" data-sap-ui-libs="sap.ui.commons,sap.ui.layout,sap.suite.ui.commons" data-sap-ui-xx-bindingSyntax="complex"></script>
Check the edited page here - Plunker - BusinessCard
Regards,
Sai Vellanki.