Former Telecom Minister A Raja was questioned again in New Delhi today by CBI. Former Telecom Minister reached CBI Headquarters on Wednesday morning for fourth round of questioning by the investigative agency regarding funding and allegedly showing favours to some telecom companies in granting 2G spectrum in 2007. Official CBI sources said that he was also asked about his conversations with corporate lobbyist Nira Radia and the reasons of advancing the cut-off date of allocation of the spectrum in 2007.The Supreme Court had also asked CBI and Enforcement Directorate to submit status reports on their investigations into the 2G spectrum case to it by February 10 when the case will come up for further hearing.