Zimbabwe's presidential inauguration has been postponed, the justice minister said Friday, after the opposition MDC party lodged a court bid to overturn the results that gave a narrow victory for Emmerson Mnangagwa.
Mr Mnangagwa won 50.8% of the vote compared with Mr Chamisa's 44.3%.
Worldwide monitors largely praised the conduct of the election itself, although European Union observers said that Mnangagwa, a former ally of Mugabe, benefited from an "un-level playing field" and a degree of voter intimidation.
Advocate Mpofu said the applicant has enough evidence including alleged statistical misrepresentations by the elections administration body, ZEC and other factors that included an uneven playing field.
The court will have 14 days to make a ruling on the case. "We have a good case and cause".
The first election since Robert Mugabe was forced to resign after a coup in November had been expected to end Zimbabwe's pariah status and launch an economic recovery but post-election unrest has reminded the country of its violent past.
The MDC-Alliance intends to scuttle the inauguration through an application challenging the presidential election results.
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Mr Chamisa wants the court to declare him the victor or call a fresh election, it is reported.
"We are seeking a declaration to the effect that the presidential election was not properly conducted".
On August 1, soldiers opened fire on MDC protesters, killing six people and sparking an worldwide outcry.
Diplomats and election observers were present at the hearing in Harare after Biti fled to Zambia but was handed back to Zimbabwean police despite claiming asylum.
He faces charges of inciting the protests last week by proclaiming victory for the opposition.
Tendai Biti was released earlier today following my intervention.
After the Tendai Biti saga, America has re-instated the ZIDERA sanctions against the people of Zimbabwe for the next 5 years. "We call on Zimbabwe's leaders to guarantee Mr. Biti's physical safety and ensure his constitutional and human rights are respected, consistent with the rule of law and Zimbabwe's global obligations and commitments", she said.