India has achieved a 50 per cent target of chlorofluorocarbons (CFCs) production from 22,558 metric tonnes to 11,294 metric tonnes and consumption from 6,681 metric tonnes to 1,940 metric tonnes. The most critical and important target of production and consumption of another ozone depleting substance used as a cleaning and process agent - Carbon Tetra Chloride (CTC) - has also been achieved by adopting suitable alternative technology for non-feedstock applications of CTC. This was announced by Minister of State for Environment and Forest Namo Narain Meena at a function here on Saturday to mark the 12th International Day for Preservation of Ozone Layer, which is observed to commemorate the date of signing of the Montreal Protocol on substances that deplete the ozone layer.