WASHINGTON: Pakistan's investigation into Mumbai terror attacks concludes ‘beyond any reasonable doubt’ that it was militants from the terror group Lashkar-e-Taiba (LeT) who carried out the carnage, the New York Times reported.

Among the organisers, the Pakistani investigation document says, was Hammad Amin Sadiq, a homeopathic pharmacist, who maintained bank accounts and secured supplies.

Pakistani and Indian dossiers on the Mumbai investigations, copies of which the Times said were obtained by it, offer a detailed picture of the operations of a Lashkar network that spans Pakistan. It included four houses and two training camps in Karachi that were used to plan the attacks, says the report.

According to a testimony by the only surviving attacker, Ajmal Kasab, the Lashkar recruits were vetted and trained around the country, including some well-established camps in Muzaffarabad in Pakistani-controlled Kashmir, as well as in Mansehra in the North-West Frontier Province.

A core group of ten people chosen for the Mumbai assault was eventually moved to Karachi and its suburbs, where the real drilling began and where Pakistani investigators later retraced the plotters’ steps.

Beginning as early as May 2008, the group trained and planned brazenly while living in various neighborhoods in and around Karachi. They made several calls using cell phones – some with stolen numbers – starting in August. They also set up voice lines over the Internet.

At one water sports shop, they bought inflatable boats, air pumps, life jackets and engines. One of their training camps and a three-room house was located near a creek where they conducted water drills in the open.

The police later recovered an abundance of evidence: militant literature, pocket diaries, spent and live ammunition, empty gun magazines, life vests and receipts for supplies, including distributed weapons and explosives, the Pakistani dossier says, according to the news report.

At the other camp, which they referred to as ‘Azizabad’, the group and their trainers set up a classroom.

Using handwritten manuals, the recruits were trained how to use mobile phones to remain in contact with each other during the attack. They also studied the maps of the Indian coastline in detail, plotting the route they would take to Mumbai. They were trained to use global positioning devices as well.

Working from Millat Town, a dusty, middle-class Karachi suburb on the eastern edge of the city, Sadiq organized the cadre. Neighbours described him as quiet and pious, riding around the streets with his two young sons perched on his motorbike. However, the Pakistani dossier, according to the Times, reveals that he was a committed Lashkar militant. –Online