A decade ago, the Centre for Development Studies started migration research based on large-scale field surveys covering the whole of Kerala State as a one-time study. However, it soon developed itself as an ongoing project called Migration Monitoring Study, Kerala (MMS). This report gives the results of the latest of these studies (fourth in the series) carried out during August-December, 2008. It provides the latest hard data on emigration, return emigration and remittances to Kerala. This study, reminiscent of the preceding ones, has brought out some unexpected goings-on in the migration trend in Kerala