Babu Owino, Mosiria clash over claims of 90 per cent KCSE exam predictions

The two men are longtime rivals. Both were student leaders at the University of Nairobi (Photo: Courtesy)                                  

Embakasi East MP Babu Owino and former Nairobi County Chief Officer Geoffrey Mosiria have clashed on X after Babu said his free KCSE Mathematics revision lessons predicted about 90% of the 2026 exam topics. 

Mosiria accused him of possibly having access to leaked papers, while Babu said his success came from preparation and years of teaching.

After the 2026 KCSE Mathematics papers, Babu Owino posted that most of what he had revised appeared in the examination. 

He wrote, “90% of what we revised was tested, and our predictions were 90% accurate. If you followed everything I taught you, you should get an A plain, even without attending a single class. Preparation pays!”

His online classes began in 2020 during COVID-19 school closures. Before the 2026 exams, he had announced free Mathematics revision sessions covering Paper 1 and Paper 2, including topics such as algebra, matrices, differentiation, binomial expansion, trigonometry and logarithms.

Geoffrey Mosiria, who formerly served as Nairobi County Chief Officer for Public Participation, Citizen Engagement and Customer Service, questioned how Babu could be so accurate. 

He asked the Ministry of Education and the Kenya National Examinations Council (KNEC) to investigate possible examination leakage.

Mosiria said, “It is disturbing that some politicians are allegedly accessing and revising the same examination papers used to assess students, only to later brag that they predicted the questions correctly.” 

He added that national examinations should be fair, transparent and equal for every candidate.

Babu rejected the leakage claims and mocked Mosiria instead. He wrote, “I know you have ice cream brain cells that melt under pressure. No wonder you struggle to understand predictions.”

Mosiria replied by accusing Babu of relying on stimulants, “Better ice cream brain cells than a mind that relies on cheap stimulants and still cannot sustain an intelligent argument! At least ice cream melts naturally; arrogance and intellectual bankruptcy are much harder to cure.” He then added, “Babu, next time come with facts, not insults. Nairobi needs brains, not noise!”

The drug claim was an insult made online and was not supported by evidence in the reports.

The two men are longtime rivals. Both were student leaders at the University of Nairobi, where Mosiria says he contested against Babu for SONU chairmanship and later faced intimidation during that period.

Their rivalry has continued into Nairobi politics. Babu is eyeing the Nairobi governorship in 2027, while Mosiria was removed from City Hall, shortly after declaring interest in challenging Governor Johnson Sakaja. 

Babu has dismissed Mosiria as “part of the failure at the county,” saying he only “took selfies and produced content” as a chief officer.