The case was brought by Menteri Besar of Perak state, Mohammad Nizar Jamaluddin, against Zambry Abdul Kadir, who acted as Menteri Besar after three members of the state legislative assembly defected from Nizar's Pakatan Rakyat and threw their support behind Zambry's Barisan Nasional coalition.
Sivakumar's tenure as speaker was shrouded in controversy surrounding his handling of the 2009 Perak constitutional crisis, where the opposition Barisan Nasional managed to obtain three defections from the elected government, enabling Barisan Nasional under Zambry Abdul Kadir to form the new government.
After three state assemblypersons from the Pakatan Rakyat coalition announced their intention to support a BN candidate for Menteri Besar, and to lend their support to a vote of no confidence in the incumbent Pakatan Rakyat Menteri Besar Mohammad Nizar Jamaluddin, Sultan Azlan Shah of Perak requested Nizar's resignation and swore in Zambry as the new Menteri Besar on 6 February 2009.
Paula Abdul | Kareem Abdul-Jabbar | Maumoon Abdul Gayoom | Sultan Abdul Aziz Shah Airport | Abdul Hamid II | Tunku Abdul Rahman | A. P. J. Abdul Kalam | Abdul Rasul Sayyaf | Abdul Qadeer Khan | Shah Abdul Latif Bhittai | Muhammad Abdul Qadeer Siddiqi Qadri | Sahibzada Abdul Qayyum | Head over Heels (Paula Abdul album) | Abdul Rashid Dostum | Abdul-Qadir Gilani | Abdul Hadi Awang | Shah Abdul Aziz | Kadir İnanır | Abdul Taib Mahmud | Abdul Rahman Al Ghafiqi | Abdul Hadi Abdul Hamid | Slamet Abdul Sjukur | Mustafa Abdul Jalil | Muhammad Abdul Bari | Mohammad Abdul Ghafoor Hazarvi | Khan Abdul Wali Khan | Abdul-Wahab Abu Al-Hail | Abdul Sattar Edhi | Abdul Malik Pahlawan | Abdul Majeed Abdul Bari |