US President Barack Obama asked Pakistani Prime Minister Yusuf Raza Gilani to bring the perpetrators of the Mumbai terrorist attacks to justice, saying this would help improve the security situation in the region. <br/><br/>Obama also did not commit for any civilian nuclear deal with Pakistan on the lines of that of India. <br/><br/>Meeting Gilani, more than two hours after his meeting with the Indian Prime Minister, Obama told the high-level Pakistani delegation that Dr Manmohan Singh was sincere in improving ties with Islamabad, but wants Pakistan to take action against those responsible for the Mumbai attacks. <br/><br/>A source referring to the deliberations that went inside the two delegations for about 40 minutes at the Blair House said that during the meeting the US President is understood to have spoken on his desire to have an improved Indo-Pak relationship arguing that he believes that this would have a positive impact on the overall situation in the region. <br/><br/>Noting that both India and Pakistan are sovereign nations, Obama felt that improvement in Indo-Pak relationship is beneficial to both of them. <br/><br/>The Pakistani delegation included Foreign Minister Shah Mahmood Qureshi, Pak Ambassador to the US Hussein Haqqani, and Pak Ambassador to China Masood Khan. <br/><br/>Besides Obama, the US delegation included Secretary of State Hillary Clinton, National Security Advisor Gen (rtd) James Jones, and Chief of Staff Rahm Emanuel.<br/><br/>Later briefing the Pakistani media, Gilani termed the meeting as very positive.<br/>