In this Nov. 26, 2008 file photo, a gunman identified by police as Ajmal Qasab walks at the... 
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India picked up intelligence in recent months that Pakistan-based terrorists were plotting attacks against Mumbai targets, an official said Tuesday, as the government demanded that Pakistan take "strong action" against those behind the deadly rampage.
The U.S., meanwhile, pressured Islamabad to cooperate with the investigation.
The only known surviving attacker told police that his group trained for months in camps operated by a banned Pakistani militant group, learning close-combat techniques, explosives training and other tactics for their three-day siege.
India's foreign intelligence agency received information as recently as September that Pakistan-based terrorists were plotting attacks against Mumbai targets, according to a government intelligence official familiar with the matter.
The information was then relayed to domestic security officials, the official said, speaking on condition of anonymity because the person was not authorized to talk publicly about the details.
The revelation comes as the government faces widespread accusations of security and intelligence failures in the Mumbai terrorist attacks that left 172 people dead and 239 injured.
Prime Minister Manmohan Singh, who has promised to strengthen maritime and air security and look into creating a new federal investigative agency, was expected to meet Tuesday with top security aides.
Already, the country's top law enforcement official has resigned and two top state officials have offered to quit amid growing criticism that the attackers appeared better trained, better coordinated and better armed than police.
Teams from the FBI and Britain's Scotland Yard met Monday with top Indian police as they prepared to help collect evidence, a police official said.
On Monday, soldiers removed the remaining bodies from the shattered Taj Mahal hotel, where the standoff finally ended Saturday morning. The army had already cleared other siege sites, including the five-star Oberoi hotel and the Mumbai headquarters of an ultra-Orthodox Jewish group.
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