The investigation by the Chittoor government railway police into the attack on a CRPF Inspector on October 30 on board the New Delhi-bound Kerala Express, has failed to make any progress.

All the five accused, two ticket inspectors from Kerala, three RPF personnel and a co-passenger from Agra, are absconding. Meanwhile, the CRPF officials at Jharkhand (the place of work of Hari Singh) and New Delhi are contemplating to appeal for probe by the CBCID.