One reason for the nervousness is that it seems likely that not nearly all the terrorists were caught or killed — and so far the whereabouts of the rest are a mystery. At least eight were confirmed dead on Friday, although more might be found as soldiers and the police combed through the two hotels. Security officials declared that they had taken control of the Taj Mahal Palace & Tower on Saturday morning, killing three militants.

Estimates of the number of attackers have ranged from 20 to 40, with the number depending to a considerable extent on the number of boats involved. As security forces seek to reconstruct how the gunmen managed to inflict so much carnage so quickly, they have been turning their attention to how so many assailants managed to reach the heart of Mumbai undetected and with such a large collection of guns, ammunition and explosives.