Section 22A(1) in Kerala General Sales Tax Rules, 1963
(1)Where any return or statement is required to be filed under these rules, any person filing such return or statement may render or make available the same in the required form which may be written, typewritten, printed or in electronic form. Where such return or statement is rendered or made available in an electronic form it shall be accessible so as to be usable for a subsequent reference and shall be authenticated by the secure digital signature of the person signing the return or statement, as the case may be, and the public key is made available to the authority before whom the document is filed. Every dealer, other than a dealer to whom an electronic identity card is issued, who desires to file return through electronic means shall pay an annual fee of two hundred rupees which shall be paid to the assessing authority in the same manner as a registration fee payable under the Act is paid.