External Affairs Minister S M Krishna told Pakistan to take seriously the revelations made by LeT operative DavidHeadley on the Mumbai attacks and not push them under the carpet . Mr Krishna told this to reporters accompanying him on his way back from Kabul, where he attended the International Conference on Afghanistan. He said whatever Headley has told the FBI has to be taken seriously by Pakistan and India's concerns have to be addressed. He was responding to a question on Home Secretary G K Pillai's contention that ISI was involved in the Mumbai terror attacks. Headley had told Indian investigators in Chicago that the ISI was involved in the planning of the 26/11 attacks from beginning to the end. During his visit to Islamabad in June, Home Minister P Chidambaram had provided leads to Pakistan based on Headley's interrogation by Indian authorities. Mr Krishna's comments came after Pakistan dismissed as baseless India's contention that Headley was linked to the Pakistani establishment and intelligence agencies. Asked about the roadmap for the Indo-Pak talks, Krishna made it clear that New Delhi is keen to continue the dialogue process with Pakistan. Mr Krishna, who met his US counterpart Hillary Clinton on the sidelines of the International Conference, said he gave her his assessment of the situation in the region and his talks with Pakistan Foreign Minister Shah Mehmood Qureshi. The Minister said there has to be an institutional mechanism for resolving the concerns between India and Pakistan.