U.S. National Security Adviser James Jones on Thursday met Home Minister P. Chidambaram and is understood to have discussed issues relating to anti-terror cooperation between India and America.

During the 20-minute meeting with Chidambaram, Jones is believed to have discussed the ways of enhancing cooperation between India and the U.S. while dealing with terrorism.

Issues like activities of Pakistan-based terror outfits, Islamabad’s action against them and arrested Lashkar-e-Taiba operative David Headley are understood to have figured in the meeting between the two leaders, sources said.

Jones had already called on Prime Minister Manmohan Singh and his Indian counterpart Shivshankar Menon during his two-day visit.

The two countries recently held their first Strategic Dialogue.

In the run-up to U.S. President Barack Obama’s visit in November, Secretary of State Hillary Clinton and Under Secretary of State for Political Affairs William Burns are also expected to travel here over the next three months.

The US on Thursday said existence of terror groups inPakistan was against the interest of the region and that country would have to take the “tough” decision of going after such groups without making any discrimination.

“In our bilateral relationship with Pakistan, we have expressed strong concerns over the existence, within the borders ofPakistan, of terrorist organisations that have goals to destabilise and attack our way of life, your way of life, to prevent strategic goals from being achieved in Afghanistan,” US National Security Adviser James Jones said.

He viewed the existence of terror outfits in Pakistan as being in “violent conflict” with the way the US sees the world collectively and bilaterally in the 21st century.