The court ordered the MEC defence team to submit its defense documents to the Malawi Congress Party (MCP) and UTM lawyers 11 days ago.
But MEC lawyers said they need the two-week extension to collect witness statements to file as evidence in the elections case.
The MEC legal team led by lawyer Tamanda Chokhotho, said the compilation of the defense documents was interfered by alleged agents of the two petitioners.
The lawyers cited as an example calls by the Malawi Congress Party (MCP) publicity secretary Maurice Munthali whom they accuse of inciting people to deal with the MEC legal team who were meeting the presiding officers.
The pollster legal team has since applied to order MCP to withdraw Munthali’s statement which asked people to be vigilant when the MEC officials visit their areas.
Lawyer for MCP Larry Nita said the opposition legal team has received the application from MEC.
In the case, UTM Party president Saulos Chilima and MCP leader Lazarus Chakwera are seeking nullification of the presidential results over alleged irregularities and claiming that MEC rigged the poll in favour of President Arthur Peter Mutharika, who was declared winner by MEC Chairperson Justice Jane Ansah.
Mutharika of the Democratic Progressive Party (DPP) won by 1 940 709 votes. He was trailed by Malawi Congress Party (MCP) president Lazarus Chakwera with 1 781 740 votes.
Third was Saulos Chilima of UTM, who scopped a million votes.