The City Police on Friday filed a supplementary chargesheet in a Delhi court against top Maoist leader Kobad Gandhy. The Special Cell of Delhi Police placed on record fresh sanction to prosecute Kobad under the Unlawful Activities Prevention Act, UAP. Gandhy is accused of trying to set up a network of the banned outfit in Delhi. The case against Ghandy is now at the stage of argument on charges.In the main chargesheet, the police had slapped charges under the UAP Act, besides booking him for various offences including cheating, forgery and impersonation.