The National Investigation Agency (NIA) on Friday said it has filed a supplementary charge sheet against Imran Yakub Giteli aka Giteli Imran, a key accused in the Visakhapatnam naval spy ring case, on charges of depositing money in the accounts of Indian Navy personnel in lieu of sensitive data provided by them that is of use to Pakistan, officials said. An NIA spokesperson said that Giteli, a resident of Godhra in Gujarat, has been charged under several sections of the Indian Penal Code (IPC) and Unlawful Activities Prevention Act. The NIA submitted its charge sheet before the NIA Special Court in Andhra Pradesh's Vijayawada.