Appeals dismissed; retrospective tax on milk for April 1, 1996-June 4, 1997 denied due to promissory estoppel and unreasonable discretion

The SC affirmed the HC, dismissing the appeals and denying the State retrospective purchase tax on milk for April 1, 1996-June 4, 1997. The court held promissory estoppel applied: the State, through high-level representations (including the Finance Minister's Budget Speech), had induced reliance and the respondents had passed on benefits by promoting milk producers. No overriding public interest justified allowing the State to resile and impose tax retrospectively; the discretion to exempt under the statute had been unreasonably exercised, so the High Court's decision was upheld and appeals dismissed without costs.

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Issues Involved:
1. Validity of the State Government's demand for purchase tax on milk for the period April 1, 1996, to June 4, 1997.
2. Application of the doctrine of promissory estoppel against the State Government.
3. Legal requirements for exemption notifications under the Punjab General Sales Tax Act, 1948.
4. Impact of public interest on the enforcement of promissory estoppel.

Issue-Wise Detailed Analysis:

1. Validity of the State Government's demand for purchase tax on milk for the period April 1, 1996, to June 4, 1997:
The respondents, who are milk producers in Punjab, did not pay purchase tax on milk for the period April 1, 1996, to June 4, 1997, based on the belief that the State Government had abolished the tax. This belief stemmed from public announcements by the Chief Minister and Finance Minister, as well as circulars issued by the Excise and Taxation Commissioner. However, on June 4, 1997, the Council of Ministers decided not to abolish the tax, leading to the issuance of tax demand notices. The High Court quashed these demands, holding that the State Government was bound by its promise to abolish the tax.

2. Application of the doctrine of promissory estoppel against the State Government:
The High Court applied the doctrine of promissory estoppel, which prevents a party from going back on a promise that another party has relied upon to their detriment. The Supreme Court upheld this application, noting that the State Government had made clear and unequivocal representations through public announcements and official circulars. The respondents had acted upon these representations by not paying the tax and passing on the benefits to milk producers. The Court cited several precedents, including *Collector of Bombay v. Municipal Corporation of the City of Bombay* and *Motilal Padampat Sugar Mills Co. Ltd. v. State of Uttar Pradesh*, to affirm that the doctrine of promissory estoppel applies to the government when it makes representations that induce reliance.

3. Legal requirements for exemption notifications under the Punjab General Sales Tax Act, 1948:
The Act provides for the levy of tax on the sale and purchase of goods, including milk, and outlines the procedure for granting exemptions. The State Government has the power to exempt goods from tax under sections 30 and 30A, which require the issuance of a notification. The appellants argued that since no formal notification was issued, the respondents could not claim exemption based on promissory estoppel. However, the Court held that the absence of a formal notification was a ministerial act and did not negate the State Government's representations.

4. Impact of public interest on the enforcement of promissory estoppel:
The appellants contended that the decision to not abolish the tax was taken in public interest. The Court acknowledged that promissory estoppel is an equitable doctrine that must yield to overriding public interest. However, it found no evidence of such an overriding public interest in this case. The representations were made after considering the financial implications and were intended to benefit the State's economy and the public. The respondents had already passed on the benefits to milk producers, making it inequitable for the State Government to resile from its promise.

Conclusion:
The Supreme Court affirmed the High Court's decision, holding that the State Government was bound by its promise to abolish the purchase tax on milk for the period in question. The doctrine of promissory estoppel was applicable, and the absence of a formal notification did not invalidate the representations made by the State Government. The appeals were dismissed without costs.

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