Chidambaram said he briefed them on the progress made by India in the trial of the arrested terrorist Ajmal Kasab, the lone survivor of the Mumbai attackers, and Pakistan's reluctance to take any action against five or six they had arrested and releasing of terror mastermind Hafiz Saeed.

Asked whether he requested US leaders to pressure Pakistan to take action against the arrested terrorists, he said the American administration 'understands the difference between the way India approached the post 26/11 situation, and the way Pakistan has approached'.

Questioned whether he gave them a fresh dossier on Pakistan's role in the terror attacks, the home minister countered: 'The dossier has already been shared with many countries, including the US and the countries whose citizens have been killed in Mumbai.

'Even the sixth dossier has been shared with 16 countries, including the US.'