After Prime Minister Manmohan Singh conveyed concerns to him over the Indian embassy attack in Kabul, Pakistan Premier Yousuf Raza Gilani today met Afghan President Hamid Karzai and discussed the incident for which ISI has been blamed.

Karzai, who was the first to hold the Pakistani spy agency responsible for the July 7 suicide attack on the Indian mission, is understood to have cited reasons to Gilani for his assertion.

After Singh raised the issue with Gilani during their meeting on the sidelines of the SAARC summit here yesterday, the Pakistan Prime Minister assured him that he would conduct an independent investigation to ascertain whether or not ISI was involved in the embassy attack.

In this regard, Gilani had told him that he would meet Karzai to get details.

The Pakistan Prime Minister had also told reporters last night that Karzai had blamed ISI "within an hour" of the incident and he would like to know the basis for his contention.

The suicide attack in which nearly 60 people, including four Indians, were killed has cast a shadow over the Indo-Pak dialogue process with New Delhi saying that the incident along with ceasefire violations and rising infiltration had created "difficulties" in bilateral ties.

"The Prime Minister (Singh) was relatively frank in expressing his concerns about recent incidents which have had an impact on the relationship and the prospects of the dialogue," Foreign Secretary Shivshankar Menon had told reporters after the Singh-Gilani meeting.

Expressing outrage at the suicide bombing in the Indian embassy, Karzai had said "it is time we all realize that the pursuit of narrow geo-political interest and the use of militant radicalism as instrument of policy cannot succeed or serve any long-term purpose."