The allegations contained in the petition relates to errors and omissions on the part of the PNG Electoral Commission.
The petition went for direction hearing yesterday to assist parties prepare themselves for trial.
Sir Mekere told supporters outside court that the election petitions are processes losing candidates pursue to seek relief and he had nothing to hide.
“It is a process we have to go through to determine if we are properly elected or not,” Sir Mekere said.
He said there is no claim of illegal acts, such as bribery, undue influence, vote rigging and electoral fraud levelled against him in this petition.
Sir Mekere was Prime Minister from 1999-2002 and was the MP for Moresby-Northwest electorate from 1997-2012 in the National Parliament.
He retired from public life in 2012, but has returned to politics.
(Sir Mekere and supporters outside court yesterday. )