India has said that there was a strong evidence of Pakistan's involvement in the Mumbai train blasts and cross-border terrorism as a whole.
National Security Adviser MK Narayanan said that Pakistan-based terrorist group Lashker-e-Taiba had international influence and it was important for the US to understand its "ramifications".
"Mr Boucher did not talk to anyone of us. But he has made a statement," Narayanan told in a TV interview when referred to the US official's remarks suggesting that India had no evidence to blame Pakistan for the Mumbai blasts that killed nearly 200 people and injured more than 700.
"If he wished to have information, we are willing to talk to anyone who wants to know the facts. He has not fallen into that category as of now," Narayanan said.
Boucher had said that nobody had clinching evidence to pinpoint the perpetrators of deadly attacks in Mumbai.
"The evidence...As far as who they were, who was responsible -- I don't think we've seen a lot yet.... I think we need to be led by the evidence before we start trying to draw conclusions and make policy pronouncements on it," the US official had said.