Manish Soni, arrested in connection with the recovery of an explosives-laden SUV near industrialist Mukesh Ambani's residence and the subsequent murder of businessman Mansukh Hiran, has moved a bail plea before a special NIA court here while saying his judicial custody is "illegal", his lawyer said on Wednesday.

Soni was arrested on June 17 along with Satish Mothkuri and former "encounter specialist" Pradeep Sharma in connection with the case.