In a setback to Samajwadi Party General Secretary Amar Singh, the Allahabad High Court today refused to grant immediate stay on his arrest in connection with an FIR accusing him of amassing Rs. 500 crore by awarding contracts to a number of companies during SP rule in Uttar Pradesh. <br/><br/>A division bench comprising Justice Yatindra Singh and Justice S K Tripathi declined to grant an immediate stay on Singh's arrest, saying the matter involves a huge sum of money. The court also directed the Uttar Pradesh government to file its counter-affidavit on the writ petition moved by Singh challenging the FIR lodged against him on October 15 in Kanpur.<br/>