"She will appear before the Special Judge's Court-9 tomorrow at 11:30 am in line with the Supreme Court directives," Zia's counsel Mahbubuddin Khokon said.
The high court in June this year rejected the ex-premier's plea seeking to quash a graft charge over contracting out a gas field to Canada's NIKO as the lower court trials were underway involving the case, withdrawing a temporary ban.
Zia is also being tried in two other graft cases involving two charities named after her husband slain Bangladeshi military ruler and Bangladeshi Nationalist Party (BNP) founder Ziaur Rahman.
Zia was premier from 2001 to 2006, and earlier from 1991 to 1996.