According to Nepal Police spokesperson Sarvendra Khanal, Koirala has been suspended on the recommendation made by the anti-graft body to facilitate an investigation into a case where plain-clothed police personnel obstructed a Kohalpur-based regional team of CIAA.

The police personnel had hemmed in the CIAA team on an operation to nab a police officer red-handed while taking bribe.

The security personnel had freed the CIAA team only after the CIAA authority drew the attention of IGP Upendra Kanta Aryal.

CIAA had arrested Sub-Inspector Suman Kharel of Banke District Police Office while receiving Rs 25,000 in bribe at a restaurant of Dhamboji Chowk in Banke district on February 6.

Koirala has been accused of turning a deaf ear to the obstruction by police officers when the anti-graft team was carrying out its responsibilities.