Pakistan said Friday that it has sent "feedback" and information to India about the Mumbai attacks, and Joe Biden came here to underscore how seriously the incoming U.S. administration takes the terror threat from South Asia.

New Delhi recently said it gave Islamabad a dossier of evidence linking the Mumbai attacks to Pakistan, but it was unclear if Pakistan's feedback related directly to that dossier.

Gilani told reporters that the CIA had played an intermediary role and that Pakistan's premier spy agency, the Inter-Services Intelligence, had reviewed the information from India. He gave few other details.

India gave 52 pages of information to the CIA that was passed to the ISI, and the Pakistani agency gave "feedback and information" that was handed to India in return, Gilani said.

"The American CIA and Pakistani ISI have an old working relationship. If any information is required we are ready to cooperate," he said.

India says Pakistani militants were behind the November attacks that killed 164 people in its financial hub. It specifically blames the banned group Lashkar-e-Taiba, which is believed to have links to the Pakistani intelligence agency. Pakistan acknowledged this week that of the 10 gunmen involved in the Mumbai attacks, the one survivor is a Pakistani citizen. It denies any of its state agencies were involved.

President-elect Barack Obama's incoming administration plans to increase the focus on the battle against al-Qaida and Taliban militants operating along the Pakistan-Afghan border. American officials worry that a conflict with India could distract Pakistan from eliminating militant sanctuaries along the Afghan frontier, and have urged India and Pakistan to cooperate.

Vice President-elect Biden was the latest in a string of envoys to visit Pakistan since the Mumbai attacks. He came in his capacity as a senator and was accompanied by Sen. Lindsey Graham. Biden takes office Jan. 20, making his visit of keen interest to Pakistani leaders eager to influence the next administration.

Media access to Biden was severely limited when he met with Prime Minister Yousuf Raza Gilani and President Asif Ali Zardari, among other top officials.

In a statement, Gilani said he pressed upon Biden the importance of greater U.S. aid to improve Pakistan's military capacity. Biden has spearheaded legislation to increase humanitarian spending in Pakistan but that also links military aid to Islamabad's performance in the fight against militants.

Gilani also said the two countries should share more intelligence so Pakistan could go after militant targets on its own, removing the need for American missile strikes on its territory. Pakistan routinely condemns such strikes.

In a separate statement, Zardari assured Biden of Pakistan's commitment to "the war against militancy, extremism and terrorism."

Later Friday, a series of small bombs exploded outside a theater in the eastern city of Lahore. Senior police official Haider Ashraf said there were no casualties in the blast.

No one immediately claimed responsibility.

The state-run Associated Press of Pakistan said Zardari bestowed an award on Biden, the "Hilal-i-Pakistan," to recognize the veteran politician's "consistent support for democracy and socio-economic development in Pakistan and for his outstanding contribution to the strengthening of U.S.-Pakistan relations."

Gilani also denied that he and Zardari were feuding, batting down speculation of fissures in the government. It is often unclear who is in charge of the weak civilian administration that came to power last year after more than eight years of military rule.

On Wednesday, Gilani fired the national security adviser after the official told reporters the surviving Mumbai attacker was Pakistani -- something that Islamabad had previously been unwilling to acknowledge.

Local media reported Zardari had not been informed of the decision to tell the press, intensifying speculation of a feud.

"There is no misunderstanding," Gilani insisted Friday.

A spokesman for Zardari said Thursday that the two were "on the same page" and that it was Gilani's prerogative to fire the adviser.

Zardari has promised to support reducing the presidency's powers, which were enhanced under his predecessor Pervez Musharraf, a man he loathed. But there has been little visible progress on that front. Zardari, who also heads the ruling Pakistan People's Party, is believed to be a stronger figure than Gilani.

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Associated Press Writer Asif Shahzad contributed to this report.