Kanyare was stopped and asked to enter a car after which he was told to alter form 35A in favour of one of the candidates but he declined.
Inside the CDF Hall, when he was about to hand over the forms, someone switched off the lights and Kanyare was shot at close range.
The elections were aborted on August 9 after chaos erupted following a dispute on how IEBC had hired presiding officers and their deputies.
Mr Mohamed Kanyare, the Independent Electoral and Boundaries Commission presiding officer at the Towheed polling centre in Elnur Tula Tula ward, Eldas constituency who was shot by unknown persons on election day, has had his leg amputated.
Mr Kanyare was rushed to Wajir County Hospital after he suffered life-threatening gunshot wounds at the Eldas Constituency Development Fund (CDF) offices on August 10.