Kourou: Indian Space Research Organisations(ISRO) communication satellite GSAT-18 was successfully launched today, from Kourou spaceport in French Guiana. The European launcher Ariane-5 VA-231 blasted off at around 0200 hrs and injected GSAT-18 into a Geosynchronous Transfer Orbit (GTO). The launch was originally scheduled for yesterday, but was postponed for 24