• The ATS is yet to establish how Kamal and Majid fled from Mumbai after the blasts and reached Bihar and West Bengal respectively. And if they fled, why did local operatives involved in the blasts continue to stay and work in the city?

• The ATS said the bombs were improvised from pressure cookers and placed on the trains by two teams. However, it is yet to establish where the cookers were bought and how they were placed in first-class compartments without attracting attention.

When contacted, ATS DIG Jai Jeet Singh said, “Investigations are on and it will take some time to get more details. As for red corner notices, we have applied only with regard to absconding Indian nationals as we have their photographs and personal details. We are collecting the same for Pakistani nationals and getting sketches made where we are unable to get photographs. We will then apply for red corner notices against them.”