Case Note & Summary
The case involved appeals against the constitutional validity of certain provisions of the Karnataka Sales Tax Act, 1957, particularly sub-section 6 of Section 17, which was amended by Act No. 7 of 1997. The appellants, M/s. Mycon Construction Limited, contended that the amendments were unconstitutional, arguing that the tax could only be levied on the transfer of property in goods involved in works contracts, not on the total consideration of the contracts. The High Court of Karnataka had previously upheld the validity of these provisions, leading to the appeals. The Supreme Court examined the legislative history and the amendments made to the Act, noting that the provisions were consistent with the constitutional framework and did not violate the rights guaranteed under Articles 14, 19(1)(g), and 265 of the Constitution. The court emphasized that the option for composition under the amended provisions was voluntary and that the legislature had the competence to enact retrospective laws. The court dismissed the appeals, affirming the High Court's decision and allowing the petitioners the option to choose regular assessment under Section 5B of the Act if they preferred. The court found no merit in the appellants' arguments regarding equity or the retrospective nature of the amendments, concluding that the legislative intent was clear and valid.
Headnote
A) Constitutional Law - Legislative Competence - Validity of Taxation Provisions - Karnataka Sales Tax Act, 1957, Section 17(6) - The court upheld the constitutional validity of sub-section 6 of Section 17 of the Karnataka Sales Tax Act, affirming the legislative competence of the State to levy tax on total consideration of works contracts, including retrospective amendments. The court found no violation of constitutional provisions, as the option for composition was voluntary and did not infringe on the rights of the petitioners (Paras 1-8).
Issue of Consideration
Whether sub-section 6 of Section 17 of the Karnataka Sales Tax Act, 1957 is unconstitutional, and whether the amendment by Act No.7 of 1997 is also unconstitutional.
Final Decision
The Supreme Court dismissed the appeals, affirming the High Court's decision that sub-section 6 of Section 17 of the Karnataka Sales Tax Act is constitutionally valid and that the retrospective amendment by Act No.7 of 1997 is also valid. The court allowed petitioners the option to choose regular assessment under Section 5B of the Act.
Law Points
- Constitutional validity
- retrospective legislation
- legislative competence
- taxation on works contracts
- composition scheme



