GSLV Mark-III is our next launch. The integration is currently going on," ISRO Chairman AS Kiran Kumar told reporters here. "The whole process of assembling the various stages and then integrating the satellite into the heat shield, these activities are going on. First week of June is when we are targeting this launch," he said.The ISRO views operationalisation of this rocket as a "game-changer" mission.GSLV Mark-III will be India's most powerful launch vehicle built to lift the heaviest Indian communications satellites to space. It can put satellites weighing 4 tonnes in space, double the weight that the current GSLV-Mark-II can lift.It will also enable ISRO to launch from India heavier communications spacecraft to geostationary orbits of 36,000 km.

Source: Economic Times May 12, 2017 13:43 UTC