Lawyers for 157 Sri Lankan asylum seekers have resumed their push for a High Court trial against the Federal Government and Immigration Minister Scott Morrison.

The asylum seekers were intercepted by an Australian Customs ship after leaving Pondicherry in India in June.

They were separated and kept in windowless rooms on the ship, and were let out for three hours to exercise and eat, while their case was heard in the Australian High Court.

It had been due to proceed as a trial before the full bench of the court in Canberra in early August, but the Australian Government moved the asylum seekers to the Curtin Detention Centre in Western Australia, before moving them again to Nauru.

At the time, a delegation of lawyers had been due to travel to the detention centre to speak with their clients.

They say they were not notified of the removal to Nauru.

Recently it was found that a majority of the asylum seekers were not infact Sri Lankans but Indians. And a few Sri Lankan asylum seekers in Nauru went on a Hunger Strike in protest of their imprisonment. (with inputs from ABC)