Indian Space Research Organisation (ISRO) failed in its mission to put in to orbit, satellite IRNSS 1H, via PSLV C-39 rocket. They were unable to put the satellite in to orbit as it did not separate from the heat shield, said ISRO chairman, A.S.Kiran Kumar . The rocket was launched as scheduled this evening from Shar centre in Sriharikota, in Nellore. However, in the fourth stage of operations, the satellite did not separate from the heat shield. A detailed analysis is being made as to the reasons for this and soon ISRO will reveal them, he added.