8.Identical issue came up for consideration in the case of K.Ramasamy [supra]. In the said case, as that of the appellant before us, the petitioner therein was a registered dealer under the provisions of the Tamil Nadu General Sales Tax Act [TNGST Act]. Two issues arose for consideration in the said writ petition, first of which would be relevant, namely, whether the Assessing Officer in the said case was justified in holding that the said petitioner has not opted to pay tax under Section 7-C of the TNGST Act. The dealer in the said case had filed the return and paid the tax at 2% and the return was processed and the nature of work done by the petitioner therein being works contract, the benefit of Section 7-C of the TNGST Act was extended and the rate of tax was fixed at 2% and the returns were accepted. Subsequently, the assessment was sought to be revised by invoking the power under Section 55 of the TNGST Act and revised orders were passed, in which the Assessing Officer took a stand that the petitioner therein has not opted to pay tax under Section 7-C of the TNGST Act. Thus, the Court framed the question as to whether the dealer was required to exercise an option to pay tax under Section 7-C of the TNGST Act by means of a separate letter or a petition. It also noted that under