India, Nov. 14 -- Investigators turned their attention on Thursday to fully reconstructing the final hours of Kashmiri doctor Umar Un Nabi, who allegedly carried out the car explosion near the Red Fort earlier this week, to ascertain if he was in touch with other, yet unidentified, members of an alleged terror module even as at least five people across two states were detained in the case.

The developments came on a day security agencies focussed on four cars - allegedly owned by Umar and another arrested accused Dr Shaheen Shahid- and said the ammonium nitrate allegedly used in the blast was likely sourced from fertiliser shops and mining suppliers in Basai Meo, Tauru, and Ferozepur Jhirka in Mewat and rural Faridabad.

Officials aware ...