K Radhakrishnan, chairman of the Indian Space Research Organisation, has said that India is preparing to launch its second moon mission Chandrayaan-II by 2013. "The Chandrayaan-II we are planning to have in the year 2013. By that time, we should have our GSLV (Geosynchronous Satellite Launch Vehicle) flying with the Indigenous Cryogenic Engine Stage. That is the target with which we are working," said Radhakrishnan.