The nurses were brought to Erbil and were in the safe custody of Indian mission staff, the Spokesperson of the External Affairs Ministry said.
They will return to Kerala in the next three to five days as their travel documents have expired and the mission was processing their new papers, he said.
Apart from the 40 Indians, who are being held hostage by Islamic militant group ISIS since June last year, it is believed that there may some more small groups of Indian nationals in different strife-torn cities of Iraq.