The three men who allegedly signed the case report on Mohammad Sanaulla - the former soldier from Assam who has been declared a foreigner -- now claim no investigation has been done in the case. The men have filed a complaint with the police, accusing Chandramal Das, the officer in the case, of fabricating the investigation report. On basis of that report, Sanaulla - who served the army for 30 years and then joined the Assam Border Police - was arrested and locked up at a detention centre last week. He has been accused of being a foreigner who has been living illegally in the country.