THE Enforcement Directorate has arrested SDPI national president M K Faizy under the anti-money laundering law, sources said on Tuesday. The Social Democratic Party of India (SDPI), founded in 2009 in Delhi, is alleged to be the political front of the now banned Popular Front of India (PFI). Faizy was taken into custody on Monday night from the Delhi international airport under the PMLA. The ED had earlier called SDPI as the “political front” of PFI.