At a time when an additional 1.02 lakh people have been dropped from the draft National Register of Citizens (NRC) list, Assam authorities have admitted to yet another incident of "mistaken identity" that resulted in a rightful citizen spending years in detention on suspicion of being a foreigner. After languishing in the Kokrajhar detention centre for over three years, 59-year-old Madhumala Mondal was released today. The border branch of the Assam Police, the agency responsible for identifying foreigners in the state, has admitted that she was placed under detention after a faulty investigation.