Banda is accused of taking a bribe from an Italian road construction firm of more than $30,000 (K150 million).
He denies any accusation of corruption in the deal, arguing the payment was made by Fratelli Locci as a commission to his logistics company. Police said the businessman and diplomat was also arrested for having $70,000 in his personal bank account.
Banda, who was arrested in April, says the charges leveled against him were meant to humiliate him and his family.
According to writ filed today (see full document below), Banda is challenging the Zambia government to allow him to travel to India where his family still remains.
He said his freedom of movement is being infringed.
The full suit is reproduced below: