(5B)Without prejudice to the provisions of sub-section (5A), any person collecting tax, other than in a case where the seller is a company, the Central Government or a State Government, may at his option, deliver or cause to be delivered such return to the prescribed income-tax authority in accordance with such scheme as may be specified by the Board in this behalf, by notification in the Official Gazette, and subject to such conditions as may be specified therein, on or before the prescribed time after the end of each financial year, on a floppy, diskette, magnetic cartridge tape, CD-ROM or any other computer readable media (hereinafter referred to as the computer media) and in the manner as may be specified in that scheme:Provided that where the person collecting tax is a company or the Central Government or a State Government, such person shall, in accordance with the provisions of this section, deliver or cause to be delivered, within the prescribed time after the end of each financial year, such returns on computer media under the said scheme.