“There was RDX in traces in the suitcase bomb on the Samjhauta Express and that much was enough for the blast mechanism,” said Kaushal.

ADG Haryana V N Rai who is heading the Samjhauta blast probe, however, said that there is still no major breakthrough in the investigation.”We are closely monitoring the situation and are in touch with Mumbai ATS. Our probe status still stands at Indore”, Rai said.

The bombers had purchased the suitcases from Indore’s Kothari market. Investigations had found that the ‘Kodak’ brand suitcases used in the explosion on the train were purchased from the Abhinandan Bag Centre in Kothari Market while a tailor who sat opposite the bag centre stitched the suitcase covers. That apart, the pipe-bomb shells, Super Saurabh plastic boxes in which the IED was packed were also bought from the same area. Two of the accused in the Malegaon blasts are from Indore.