The Commission for the Investigation of Abuse of Authority (CIAA) on Monday evening arrested Karki allegedly for taking bribe from a youth promising the latter a job of police inspector.
"A three-member committee has been formed to investigate into the matter," said a statement issued by the party´s central disciplinary body on Tuesday.
The party said it will take action as per the committee´s report.
JC names justice to probe bribery charge against judge Baniya