Suzlon Energy on Friday informed exchanges that its wholly-owned subsidiary Suzlon Global Services Ltd (SGSL) received a penalty order from the office of Commissioner of Customs (Imports), Mumbai, alleging non-payment of customs duty. "This is to inform that Office of the Commissioner of Customs (Imports), Mumbai, has levied a penalty of Rs 7.47 lakh upon Suzlon Global Services Ltd (SGSL), a wholly-owned subsidiary of the company. SGSL shall prefer an appeal against the order with the appropriate authorities in due course of time," the renewable energy solutions providers stated in a BSE filing.