Contradicting National Security Adviser MK Narayanan's claim that Islamabad has reverted on Mumbai attacks dossier, External Affairs Minister Pranab Mukherjee on Tuesday asserted that India is yet to receive any official response from Pakistan.

"That he (Narayanan) has said in his own way. The fact of the matter is that after they (Pakistan) received material from us, we have not received any official communication about the progress of investigation conducted by them," Mukherjee told reporters here when referred to the NSA's comments.