Firdaus was elected to the Jerai seat in the 2008 election, defeating incumbent Badruddin Amiruldin of the ruling Barisan Nasional coalition.
Mohd Bunyamin Umar | Mohd Azraai Khor Abdullah | Mohd Khyril Muhymeen Zambri | Mohd Shakir Shaari | Mohd Farizal Marlias | Mohd Ali Rustam | Syed Jaafar Albar | Onn Jaafar | Mohd Sabre Mat Abu | Mohd Nurul Azwan Roya | Mohd Noor Amin | Mohd Nizar Zakaria | Mohd Khalil Yaakob | Mohd Johari Baharum | Mohd Badhri Mohd Radzi | Mohd Azmi Muslim | Mohd Aidil Zafuan Abdul Radzak | Firdaus Kharas | Firdaus Kanga | Dato' Seri Megat Jaafar Bin Megat Yunus | Dato' Seri Megat Jaafar | Admiral Tan Sri Dato' Sri Mohd Anwar bin Hj Mohd Nor |