Malawi Congress Party (MCP) spokesperson on finance in parliament, Joseph Njobvuyalema, called for an explanation on the conditions of employment for the position of coordinator for safe motherhood including benefits which the first lady holds.
Mutharika was appointed by her husband President Bingu wa Mutharika on august 16 last year.
However, government in December last year, paid the first lady a gross salary of 9 million kwacha in arrears from May 1, 2010.
When contacted, both deputy minister of presidential affairs, Nicholas Dausi and presidential spokesperson, Hetherwick Ntaba declined to comment on the issue.
It is expected that the authorities may address the issues in parliament today when it resumes sitting.