Based on the provided legal document, here are the key points:

• Subject Matter: The case concerns Land Acquisition and specifically the Exemption from the Town Planning Act under the Punjab Regional and Town Planning and Development Act, 1995. [judgement_subject]
• Relevant Legislation: The judgment refers to the Constitution of India (Articles 300-A and 21) and the Punjab Regional and Town Planning and Development Act, 1995 (Section 178(2)). [judgement_act_referred]
• Validity of Exemption Notification: The exemption notification issued by the Government under Section 178(2) does not suffer from any infirmity, as the Government took a considered decision on relevant and germane grounds to prevent haphazard development and undue hardship to allottees. (!) (!) (!) (!)
• Judicial Review Limitations: It is not permissible to challenge the exemption notification before the Supreme Court if no factual foundation was laid or the challenge was not made before the High Court. (!) (!) (!)
• Power of Exemption: Section 178(2) empowers the Government to exempt areas if the operation of the Act causes undue hardship or if circumstances render it expedient to do so. This power should be construed liberally to allow bona fide decisions. (!) (!) (!) (!)
• Rehabilitation Measures: Neither Article 300-A of the Constitution nor the Land Acquisition Act makes rehabilitation of expropriated owners a condition precedent for compulsory acquisition of land. (!) (!)
• Land Pooling Scheme: The Land Pooling Scheme formulated by the State is prospective in nature and cannot be introduced after the acquisition and allotment process are over; thus, it cannot be applied retrospectively to the appellants. (!) (!)
• Outcome: The appeals were dismissed as the acquisition proceedings were valid, but the Court directed that if the appellants apply for a reference to the Civil Court for higher compensation within six weeks, the Collector shall make such a reference. (!)