This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
From your code it appears that the com.techm.sdp.prm.vo.ActivateApproverBeanVO isn't a list, so you don't need to iterate over it. You might want to try taking out the inner iterate tag and setting the name attribute of your bean:write tags to approverRecord instead of approverDetail.