KATHMANDU: More than 150 lawmakers of CPN-UML and CPN Maoist Centre have filed an impeachment motion against the Commission for the Investigation of Abuse of Authority Chief Lok Man Singh Karki, UML Chief Whip Bhanubhakta Dhakal said. The motion was registered with 157 lawmakers as signatories, which is more than one fourth of the total strength of House, at the Parliament Secretariat this evening in accordance to Article 101 of the Constitution, he informed. Maoist lawmaker Mahendra Bahadur Shahi is the proposer and Dhakal the seconder of the impeachment motion. The charges against the CIAA chief include exercising extra-jurisdiction power, Dhakal informed. Speaker Onsari Gharti Magar later told the BBC Nepali Service the House would follow the provisions in the Constitution and the Parliamentary Regulations apropos to the motion.