KATHMANDU. JUNE 9 Commission for the Investigation of Abuse of Authority (CIAA) on Monday filed a corruption case against Birgunj Metropolitan City Mayor Rajesh Man Singh and six others, accusing them of facilitating the acquisition of Nepali citizenship using forged documents. The charge sheet was filed at the Special Court, alleging the preparation of fake official documents, submission of misleading reports and actions detrimental to the state's interests, according to CIAA spokesperson Suresh Neupane. The anti-graft body claims that Mayor Singh helped obtain a citizenship certificate for a woman identified as Rubina Shrestha by falsely presenting her as his daughter, despite her being the daughter of Rita Bhattarai. Others named in the case include Birgunj-3 Ward Secretary Bhikhari Raya, ward member Tufail Akhtar Thakurai, former Parsa District Administration Office administrative officer Shad Kumar Pokhrel, former Home Ministry under-secretary Pushkar Rana, section officer Parshuram Pokharel and Rita Bhattarai of Indrawati Rural Municipality-10, Sindhupalchowk. The CIAA has sought legal action against all those involved for their alleged roles in the citizenship fraud case.