ISLAMABAD - Pakistan Thursday declared that it would incessantly work with the United States for realising common objectives in the war against terror and for the common interest in the region.Answering the questions at a weekly press briefing here Thursday, Foreign Office spokesman Muazzam Ahmad Khan said Pakistan and the US were enjoying good relations and Islamabad would continue working with newly-re-elected President Barack Obama.“Both countries are trying their level best to achieve common interest in the region,” he said, acknowledging the fact that Islamabad and Washington had experienced nominal ups and downs in their relations. To a question, the spokesman conceded that differences existed with the US over drone strikes and both the countries considered the issue as a major hurdle in smooth relations between the two terror war allies and added that talks were underway to resolve the issue.When his attention was drawn towards TTP Swat Commander Maulvi Fazlullah, he said detailed dossiers of evidence regarding the militant leader were sent to the Afghan government and US-led allied forces in Afghanistan, and added that Pakistan had also received reply from the Afghan government in this connection and both sides were in contact.Regarding Indian prime minister’s visit to Pakistan, he said invitation had been sent to Manmohan Singh and he would be welcomed whenever he visits.The spokesman said that Foreign Minister Hina Rabbani Khar would visit Dhaka on Friday (today) to deliver an invitation to Bangladeshi prime minister for her participation in the forthcoming 8th session of the D-8 Summit being hosted by Pakistan in Islamabad on November 22.Earlier, Hina had visited Cairo on 31st October as a special envoy of the president to deliver invitation to the president of Egypt, Dr Muhammad Mursi, for participation in the D-8 Summit, Moazzam Khan said, adding, the Egyptian president and the prime minister of Turkey had confirmed their participation. The foreign office spokesman clarified that the visit of Iranian vice-president was postponed because of his other engagements. His visit would be rescheduled, he added.He said Pakistan would host a two-day regional anti-narcotics ministerial level conference on November 12 and 13 in Islamabad aimed at controlling the menace of drugs production in the region. Ministers of Azerbaijan, Afghanistan, China, India, Iran, Kazakhstan, Tajikistan, Turkey, Russia and Uzbekistan would participate in the conference, he added.He also confirmed that the Foreign Office had dispatched the letter relating to the National Reconciliation Ordinance (NRO) implementation case to authorities in Switzerland, which was in accordance with an order of the Supreme Court, on Nov 5. Agencies add: He congratulated Barrack Obama on his re-election as President of the United States. He said Pakistan’s policy was unchanged on the issue of US drone strikes in the country. The solution to the problem should be acceptable to the both parties.He said Pakistan had also invited Indian Prime Minister Manmohan Sigh for the conference