India today slammed Pakistan for its "flip-flop" over owning citizenship of Ajmal Qasab, the lone surviving terrorist who attacked Mumbai on November 26.

"He (Kasab) has told us quite categorically where he comes from, where he received military and arms training and where his handlers are located. Unfortunately, despite this, we have seen a consistent flip-flop in the reaction of the government in Islamabad," External Affairs Minister Pranab Mukherjee told a gathering at the Pravasi Bharatiya Divas at Chennai.