The court had ordered both Chilima and the second petitioner, MCP president Lazarus Chakwera to serve the respondents with the written submission by the end of on Tuesday, December 10.
But according to a court document seen by MBC Online, Chilima, who is president for UTM, has missed the deadline.
Apart from the fine, the five judges hearing the case have also directed that “the respondents should serve the first petitioner with a written submission before the lapse of an equivalent period of first petitioner’s delay”.
On December 6, the constitutional court concluded hearing of the case and set December 19 and 20 for the hearing of oral submissions.
A total of 15 witnesses have been heard in the historical case, which started on August 8.
The petitioners are seeking nullification of the May 21 presidential poll, claiming that MEC rigged the vote in favour of Mutharika, who was declared winner after beating Chakwera by a 159,000 vote-margin.
Chilima, former vice president to Mutharika, came third, bagging some one million plus votes.