The Aam Aadmi Party's Rajya Sabha MP Sanjay Singh was produced before the Rouse Avenue Court in Delhi after he was arrested by the Enforcement Directorate, or ED, on Wednesday in a money laundering case linked to the investigation into the Delhi liquor policy. The financial probe agency, which arrested Mr Singh after a nine-hour search of his residence, is seeking his custody for questioning in the case in which another AAP leader, Manish Sisodia, is in jail. Mr Sisodia was arrested by the Central Bureau of Investigation earlier this year.