Washington: India and the United States have agreed to strengthen cooperation in counter-terrorism with President Barack Obama asking Pakistan to deal "effectively" with extremist organisations operating from there.

Obama also said terrorism should be eradicated from that region which had seen a lot of violence and extremism and that both the countries should actively cooperate in counter-intelligence to prevent Mumbai-type attacks.

At a joint press conference after discussions in the White House, President Obama and Prime Minister Manmohan Singh reaffirmed their "full and complete" commitment to implementation of the Indo-US civil nuclear deal.

Singh, who is the first foreign leader to be received as the state guest in the Obama administration, said that the President has reaffirmed that it is the common resolve of the two countries to implement the nuclear deal as early as possible.

"It is only a question of 'i's and 't's to be crossed. I am confident and I have the assurance of the President that this process will be over without much further loss of time," Singh said.

Obama, who heaped praise on Singh calling him a man of honesty and integrity, also announced that he has accepted the Prime Minister's invitation to visit India next year.

"I respect him and I trust him. And I have happily accepted his gracious invitation to visit India next year," Obama said.

Tags: India, Manmohan Singh, Obama, terrorism, USA