KATHMANDU: The Commission for the Investigation of Abuse of Authority (CIAA) has filed a graft case against sub-engineer Prakash Tiwari on Monday.

The anti-graft filed the graft case at Special Court against Tiwari deployed at National Reconstruction Authority Bhojpur for receiving Rs 6,000 from a service seeker.

Tiwari had taken the kickback for preparing a conclusion report for house reconstruction.