Ganduje secured the win after the collation of figures for the supplementary elections held on March 23, 2019 with a margin of less than 9,000 votes.
The final collation of results had been delayed by Kibiya and Nasarawa Local Government Areas.
However, the LGAs results in the supplementary elections were declared on Sunday evening.
In Kibiya LGA, Abba Yusuf of the Peoples Democratic Party, PDP, polled 228 votes, while the APC polled 371 votes.
On the other hand for Nasarawa LGA, APC secured a whopping 10,536 votes against PDPs 3,409 votes.
The returning officer checks showed valid votes stood at 14,048 while rejected votes were 376, and total votes cast were 14,424.
So, at the end of the supplementary elections held in 28 LGAs on March 23, PDP polled a total of 10,239 votes against 45,876 votes secured by APC.
During March 9 governorship election, PDP was leading with 1,014,474 votes, while APC had secured 987,819 votes, before the elections were declared inconclusive.
However, after the March 23 governorship election, the total figures for APC stood at 1,033,695 votes against 1,024,713 votes secured by PDP, meaning Ganduje won with a margin of 8,982 votes.
Four polling units were cancelled in Gama Ward in Nasarawa LGA due to incidents of over voting and violence. A total of 2,639 votes were cancelled.