After he was declared the winner, the 49-year-old Nairobi based lawyer said he will prioritise on uplifting academic performance in local schools and sports activities.
"Internet inter-connectivity is poor in this area. I am planning to increase coverage of fibre optic cables," said Mr Kiai.
He also vowed to complete development projects and programmes started by Mr Kabando, such as the renovation of schools.
"There is no personal grudge and I respect him since he is also my friend. I am inviting all my opponents to join hands with me for the growth and development of our constituency," said Mr Kiai.
He was accompanied by the newly elected Rugi MCA Cyrus Ngure Kagwi.
The lawyer now becomes the seventh MP to serve the constituency since it was established 1969.
The first MP was Mwai Koigi of Kanu, Henry Clement Wariithi (1974-1983), Ngumbu Njururi Maiyani (1983-1992), David Muhika Mutahi of Democratic Party (1992-2002), Mutahi Kagwe of Narc (2002-2007) and Mr Kabando who has been MP since 2007.