The three states filed the suit against the Federal Government seeking a restraining order to stop the full implementation of the naira redesign policy of the Central Bank of Nigeria.
In a new development, nine states have filed to join the suit initially filed by Kogi, Kaduna and Zamfara states.
The states are Katsina, Lagos, Cross River, Ogun, Ekiti, Ondo and Sokoto states bringing the new total of plaintiffs to ten.
On the other hand, Edo and Bayelsa have filed to be joined as respondents.
The 7-man panel led by Justice John Okoro ordered them to amend their processes to be heard as one.
Meanwhile, pending hearing, the old order to suspend the ban of the now older 200, 500 and 1000 naira notes subsist.