The Allahabad High Court on Friday directed the Enforcement Directorate (ED) to investigate charges of money- laundering against Rajya Sabha MP Amar Singh, saying that the matter needed a thorough probe as it had “national ramifications.”

The court gave the direction while dismissing a petition filed by the former Samajwadi Party general secretary who had challenged an FIR lodged in Kanpur nearly two years ago accusing him of various financial irregularities when the party was in power in Uttar Pradesh.