<br/>India has demanded credible action by Pakistan in the 26/11 terror attack case. Foreign Secretary Nirupama Rao said on Tuesday that core issue of addressing the country's concerns on the Mumbai carnage will be part of Foreign Secretary level talks with Pakistan. She said that New Delhi has underlined the need for Islamabad to take the evidence and additional evidence provided in the 16 dossiers seriously to bring the terror masters to justice. <br/> <br/>AIR correspondent reports that Foreign Secretary Nirupama Rao who is leaving for Islamabad today to hold discussions with his Pakistani counterpart Salman Bashir to prepare the agenda for talks between the External Affairs Ministers of the two countries on the 15th of next month.<br/> <br/>After the Mumbai terror attacks the foreign secretaries of the two countries met first time on 25th of February in New Delhi. This is considered as the first step towards restoring trust and confidence between the two countries. <br/> <br/>The talks assume importance as they take place ahead of the home minister's discussions with his Pakistani counter part where he is expected to press for action against the terrorists responsible for attacks against India. Fresh initiative to reduce the trust deficit was taken after the Prime Minister Dr. Manmohan Singh met his Pakistani counterpart Yousuf Raza Gilani in Thimphu on the margins of the SAARC Summit in April this year. Observers are hopeful that the fresh round of talks will pave the way for a substantive dialogue.<br/>