While Canada and the US have already ignored the list, "it is condemnable that India has complied with the inhumane, anti-Tamil" move by Colombo, he said in a statement here.
Karunanidhi also pointed out that one of the 424 persons named, who was returning to India from the UK for medical treatment for his mother, was turned away.
Sri Lanka had designated 16 Tamil diaspora groups and 424 individuals as terrorists late March.