The 72-year-old three-time former prime minister was sentenced by Dhaka's Special Court on February 8 in connection with the embezzlement of 21 million taka (about USD 250,000) in foreign donations meant for the Zia Orphanage Trust, named after her late husband Ziaur Rahman, a military ruler-turned-politician.
"The (two-judge) bench accepted the petitions and fixed Sunday for hearing her bail prayer particularly," a High Court official told newsmen.
The High Court order came as Zias counsels filed two petitions two days after the defence counsels challenged her conviction against the lower court verdict.
Zias lawyers earlier said in their 1,223-page prayer they cited 25 grounds for her acquittal alleging that the verdict was politically motivated to debar her from contesting upcoming elections, an allegation denied by Prime Minister Sheikh Hasinas government.
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The BNP had boycotted the general election in 2014 and spearheaded a protracted street campaign enforcing a nationwide blockade coinciding with its first anniversary that saw some 500 people dead in arson attacks.
Zia, however, appears to be seeking to contest the next polls set for December this year.
BNPs secretary general Mirza Falhrul Islam Alamgir last week told a protest rally that the party would not take part in polls discarding Zia saying "no national election will be held without BNP Chairperson Khaleda Zia".