Case Note & Summary
The petitioners, M/s. Prasad Power Control Pvt. Limited and its director, challenged the constitutional validity of Section 41B of the Bombay Sales Tax Act, 1959 and Rule 31AA of the Bombay Sales Tax Rules, 1959, to the extent they were made retrospectively applicable from 1st January 1980. The petitioners also challenged assessment orders for the years 1994-1995, 1995-1996, and 1996-1997, but did not press that challenge as appeals were pending. The core dispute was whether a unit established under the Government Resolution dated 30th September 1988 (1988 Package Scheme of Incentives) could be subjected to a different mechanism for calculating notional sales tax liability introduced retrospectively. The petitioners argued that the retrospective amendment defeated their vested rights under the 1988 Scheme and violated principles of promissory estoppel. The respondents contended that the amendment was procedural and did not affect substantive rights. The court held that the retrospective amendment was valid as it did not take away any vested right but only changed the method of calculation, which was a matter of procedure. The court noted that the 1988 GR itself provided that notional tax liability would be calculated as per the BST Act and Rules, and the amendment merely clarified the method. The court also held that promissory estoppel could not be invoked against a legislative amendment. The petition was dismissed, and the constitutional validity of Section 41B and Rule 31AA was upheld.
Headnote
A) Constitutional Law - Retrospective Legislation - Validity of Retrospective Amendment - Section 41B Bombay Sales Tax Act, 1959 and Rule 31AA Bombay Sales Tax Rules, 1959 - Challenge to retrospective operation from 1st January 1980 on ground that it defeats vested rights under 1988 Package Scheme - Court held that retrospective amendment is valid as it does not take away any vested right but only changes the method of calculation of notional tax liability which is a matter of procedure - Held that the amendment does not violate Article 14 or Article 19(1)(g) of the Constitution (Paras 1-10). B) Sales Tax - Package Scheme of Incentives - Notional Sales Tax Liability - Calculation Mechanism - Section 41B BST Act, Rule 31AA BST Rules - Dispute pertained to whether a different mechanism for calculating notional sales tax liability can be introduced retrospectively - Court held that the 1988 GR itself provided that the notional tax liability would be calculated as per the BST Act and Rules, and the amendment merely clarified the method - Held that the petitioners had no vested right to a particular method of calculation (Paras 2-8). C) Promissory Estoppel - Applicability to Retrospective Amendments - Government Resolution dated 30th September 1988 - Petitioners argued that the retrospective amendment violated promissory estoppel - Court held that there was no promise that the method of calculation would remain unchanged, and the government can change the method retrospectively if it does not affect substantive rights - Held that promissory estoppel cannot be invoked against a legislative amendment (Paras 9-12).
Issue of Consideration
Whether Section 41B of the Bombay Sales Tax Act, 1959 and Rule 31AA of the Bombay Sales Tax Rules, 1959, which introduced a different mechanism for calculating notional sales tax liability with retrospective effect from 1st January 1980, are constitutionally valid and whether they defeat the rights vested in units established under the 1988 Package Scheme of Incentives.
Final Decision
The writ petition is dismissed. The constitutional validity of Section 41B of the Bombay Sales Tax Act, 1959 and Rule 31AA of the Bombay Sales Tax Rules, 1959 is upheld. The challenge to the assessment orders is not pressed as appeals are pending.
Law Points
- Retrospective amendment
- vested rights
- promissory estoppel
- notional sales tax liability
- package scheme of incentives
- Section 41B Bombay Sales Tax Act
- Rule 31AA Bombay Sales Tax Rules
