Several incriminating documents have been seized during the raids conducted at 34 places in Delhi and Chennai by the CBI in connection with the on-going investigations into the alleged irregularities in the allocation of 2G Spectrum.Briefing media this evening, the spokesperson of the Premier Investigating Agency Vineeta Thakur said that searches were conducted at the residences and offices of the former Chairman of the Telecom Regulatory Authority of India Pradip Baijal and three premises related to corporate lobbyist Neera Radia in Noida, Chhatarpur and Barakhamba as well as premises of several companies and their Directors. Premises of Mahesh Jain a Hawala operator were raided for alleged linkages with the case. The spokesperson said that Enforcement Directorate has been asked to coordinate specially to look into the money laundering angle to the probe. She said that Wednesday's raids were a follow up of the searches conducted on the 8th of this month. Ms Thakur said that the searches which began early this morning are still continuing. According to CBI no arrests have been made so far. AIR Chennai correspondent said that at least three places in the city including the residence of a senior journalist were raided by the CBI sleuths. Earlier, last week, the CBI had carried out searches at the residences of former Telecom Minister A Raja in Delhi, Chennai and his village Velur besides conducting raids at the premises of a possible business associate and four other Telecom officials, including his personal secretary R K Chandolia, former Telecom Secretary Siddarth Behura and others. The CBI had registered a case in October last year against unknown officials of Department of Telecom, unknown persons and companies under prevention of corruption Act.