The Serious Fraud Investigation Office (SFIO) is carrying out a detailed probe into the matter related to the Sahara group of companies and it is also looking into the reason behind a sizeable number of investors not coming forward to claim the invested money in the company, Union Finance Minister Nirmala Sitharaman said in Lok Sabha on Monday. Sitharaman also said the entire affairs of the Sahara group are being monitored by the Supreme Court and the government is acting according to the directives of the apex court..