The lucrative Indian Cricket League (ICL), which has attracted a number of big-name players, has come under pressure after India's national board (BCCI) refused to give it approval.
The BCCI later announced it would launch its own multi-million dollar version from next year, with the support of other major boards including those of Sri Lanka and Pakistan.
The ICL said in a statement on Friday that their latest signings also included four New Zealand players and Pakistan all-rounder Azhar Mahmood.
Of the New Zealanders, Chris Cairns and Nathan Astle have retired from international cricket, Chris Harris has not played internationals recent and Hamish Marshall turned down a national contract for 2007-08 to pursue a career in England.
The ICL was launched in April by India's Essel Group, which owns the country's biggest listed media firm Zee Telefilms Ltd. It was due to start next month but has been postponed to mid-November due to logistical problems.
Retired West Indies skipper Brian Lara and Pakistan's Inzamam-ul Haq, Imran Farhat and Abdul Razzaq have agreed to play in the ICL, as have South Africans Lance Klusener and Nicky Boje.
A number of Indian domestic players have also joined the league despite BCCI threats to ban them.