A former deputy governor of Sichuan sacked over alleged disciplinary violations has made a quiet political comeback. Li Chengyun, removed from his post at the end of September, has been appointed deputy director of the Sichuan Policymaking Consultation Committee, a Sichuan government think tank, a statement on the committee's website said. Li was the committee's director before coming under investigation. The decision was made by Sichuan's Communist Party standing committee and announced by provincial organisation department chief Ke Zunping, according to a statement released on the government website on Wednesday. Li, 56, has reportedly been put under shuanggui, a form of detention imposed on party members being investigated for corruption. State media reported the brief notice of Li's sacking as deputy governor, a post he had held since 2008, in September without elaboration, but speculation was rife that he was being punished for corruption and involvement with a female spy. Sichuan governor Jiang Jufeng reportedly told a provincial people's congress standing committee meeting at the time that Li was 'allegedly involved in disciplinary violation and proposed stepping down from his post as Sichuan deputy governor'. An earlier report by Taiwan's United Daily News quoted unnamed sources as saying that Li was put under shuanggui for financial irregularities and being too close to a Taiwanese woman who was allegedly a spy. Li oversaw industry, science and technology as a Sichuan deputy governor and was also in charge of the Office of Science, Technology and Industry for National Defence - sensitive areas that the authorities fear could have been penetrated by the alleged spy, United Daily News reported. Li is one of the four ministerial- or vice-ministerial-level officials known to be under investigation this year.