India on Thursday said 'much more' needs to be done by Pakistan to bring to book perpetrators of the Mumbai carnage and asked Islamabad to take 'credible steps' to dismantle terror infrastructure in its territory.
Foreign Secretary Shivshankar Menon, who discussed the progress in the probe into Mumbai strikes with senior US diplomats and officials, said India will give more material to Pakistan on the 2611 attacks as asked by it.
"From our point of view there are two clear goals that we work to and hope that our friends would work to as well," Menon told reporters at the end of his four-day visit to the US.
One is bringing the perpetrators to justice and secondly India would like to see credible action by Islamabad to dismantle the infrastructure of terrorism in Pakistan, he said.
After India had given on January 5 a dossier to Pakistan on the Mumbai attacks, Islamabad sent a set of 30 questions seeking reply from New Delhi.
"Pakistan has started an investigation, it has taken some actions. It has told us about that, and has also asked us some questions, to which we would be giving them reply and give them more material, now that the chargesheet have been filed," he said.