Colombo: India has complied with Sri Lanka`s ban on 16 Tamil diaspora groups and 424 of their supporters on grounds that they are allegedly involved in terror activities while the US ignored the list, a media report said on Sunday.
Some of the designated organisations had met the US Assistant Secretary of State for Central and South Asia, Nisha Biswal last Thursday in Washington DC, Sunday Times reported.
A US embassy spokesman in Colombo confirmed the meeting.
Sri Lanka had designated 16 Tamil diaspora groups and 424 individuals as terrorists late March.
They are based in many countries including India.
Sri Lanka was planning to ask the foreign governments to crackdown on them, the government sources earlier said.
Canada became the first country to publicly state that Sri Lankan order would be ignored.
"Sri Lanka`s action has no legal effect in Canada," a joint statement from the Canadian foreign minister John Baird and his deputy Lynne Yelich had said.
India has acted on the information contained in the order. One of the 424 persons named, who was returning to India from the UK for medical treatment for his mother was turned away.
A similar course of action has also been taken by immigration officials in Tehran, Iran when one of them visited the country.
Sri Lanka said that they are in possession of information on substantial amounts of money remitted from overseas for planned terrorist activity.