Khaleda Zia has been in jail since February 2018
The High Court has permitted the Anti-Corruption Commission (ACC) to become a party in the writ petition filed by Khaleda Zia challenging the government notification.
The BNP chief challenged the government's plea to hold her trial at a courtroom in Keraniganj Central Jail.
The High Court bench of Justice Farah Mahbub and Justice Md Khairul Alam passed the order on Monday, following a petition filed by ACC in this regard.
The bench also fixed Tuesday for holding hearing on the writ petition.
Advocate AJ Mohammad Ali, Barristers AM Mahbub Uddin Khokon and Kayser Kamal stood for Khaleda, while Attorney General Mahbubey Alam represented the state, and Advocate Khurshid Alam Khan stood for the ACC.
Earlier on Sunday, BNP Chairperson Khaleda Zia filed a petition with the High Court challenging the legality of shifting the trial venue.
The Law Ministry on May 13 issued separate gazette notifications about setting up a makeshift court inside Keraniganj jail and holding trial in the 17 cases against Khaleda there.
On May 21, Khaleda's lawyers sent a legal notice to the government challenging the government notice issued regarding the shifting of Khaleda's trials.
Later, Khaleda filed the petition as the government did not take any action regarding the matter.
Three government officials--including home and law secretaries-- were made respondent to the writ.
The newly-constructed building 2 of the central jail was declared the makeshift court as per the sub-section 2 of section 9 of the Code of Criminal Procedure.
Criticizing the gazettes, Kamal said the constitution does not allow holding trials in jails or open space.
Khaleda, BNP chairperson and former prime minister, has been in jail since February 2019, after she was convicted of corruption.
Her party claims that the cases against her are politically motivated and accuses the government of plotting to keep her out of national politics - a charge the government denies.
Earlier this month, the home minister said the BNP chief would be taken to Keraniganj jail after her treatment at Bangabandhu Sheikh Mujib Medical University (BSMMU).
The old central jail, where she had been kept, will be converted into a museum, he told reporters.