The Senatorial candidate of the All Progressives Congress, Shettima had been declared the winner of the election.
In a petition marked: EPT/BO/SEN/3/2019 dated March 17, filed before the tribunal sitting in Abuja and made available to NAN, Abba-Aji argued that there was over voting in seven wards and evidence of corrupt practices and non-compliance to provision of the Electoral Act.
The respondents in the suit filed by the PDP’s candidate include, APC and the Independent National Electoral Commission.
Abba-Aji called on the tribunal to withdraw the Certificate of Return issued to Shettima because the election was marred by corrupt practices and non- compliance with electoral Act.
He is also seeking an order mandating the electoral body to conduct a fresh election.
In other petitions, Mallam Kudla Satumari of the PDP, is challenging the declaration of Sen. Mohammed Ndume as winner of the Borno South Senatorial District conducted on Feb. 23.
Joined as respondents in the petition are Ndume’s party, the APC and INEC.
In the petition dated March 15 with number, EPT/BO/SEN/1/2019 made available to NAN, Satumari averred that the election was marred by corrupt practices and non- compliance with provision of the Electoral Act.
Satumari called on the tribunal to cancel the election and to order INEC to conduct a fresh election for the Senatorial District within 90 days.
Bukar Shuwa of the PDP is challenging the declaration of Alhaji Ahmed Satomi of the APC as the representative for Jere Federal Constituency of Borno.
Shuwa joined APC and INEC in the petition with number EPT/BO/HR/4/2019 dated March 17.
Mr Mike David, Secretary to the tribunal, while speaking with NAN stated that the tribunal relocated its sitting from Maiduguri to Abuja, following an approval by the president of Court of Appeal, Justice Zainab Bulkachuwa.
He stated that relocation came as a result of security reasons and Justice Ishaq Bello, the FCT Chief Judge approved the use of FCT High Court Nyanya.
David said the tribunal was presided by Justice Peter Kekemeke with Justice Anthonia Ubaka and Justice Yahaya Abubakar as members.
He said that it has received seven petitions, but a pre-hearing date had yet to be fixed.