India 360: Kasab, from petty thief to terrorist | The training | Terror tree

Almost a month after Mumbai terror attack, a question that remains unanswered is how a handful of terrorists could hold a city to ransom for 60 hours.

The efficiency with which Mohd Ajmal Kasab — the lone gunmen captured during the Mumbai attacks — and his associates wielded their weapons was the result of several months of rigorous training.