Bihar police on Thursday raided the Regional Passport Office in Patna and seized some documents relating to issuance of passport on a fake address to Pune-based stud farm owner Hasan Ali Khan, arrested on charges of money laundering and huge tax evasion.
"Police raided the office of the Regional Passport Officer here and seized some documents relating to the passport issued to Khan," City Superintendent of Police Shivdip Lande said.
Police also questioned RPO Anand Kumar, he said.
Earlier, the Enforcement Directorate (ED), which is probing the black money case, raided the residence of AICC member and Congress spokesman Amlendu Pandey.
Lande said that police would continue to probe how Khan, accused of stashing away billions of dollars abroad, got a passport from Patna on a fake address.
The RPO in Patna had lodged an FIR in 2010 against Khan for submitting fake residential proof.
In his passport application, Khan had given Pathantoli locality in Alamganj area in Patna as his address and Belsand village in Sitamarhi district as the permanent address, official sources said.