The Service Party was given a certificate of registration after meeting all the requirements on Tuesday.
The unveiling of the new party signals a comeback into politics by the immediate former Agriculture CS, who was dropped from the Cabinet in January by President Uhuru Kenyatta.
Kiunjuri was kicked out of Uhuru’s administration in the continued purge targeting Deputy President William Ruto’s allies. He is a close associate of the DP.
TSP is the latest entrant in Central Kenya as leaders position themselves for the 2022 elections.
With no end in sight to the growing squabbles in Jubilee, Kiunjuri is seeking to control the Central region with the new party.