SC strikes down West Bengal's HIRA law owing to its encroachment upon the Real Estate (Regulation and Development) Act, 2016 arriving at the conclusion that the WB-HIRA was repugnant to the RERA and hence unconstitutional. The 190 pages judgment mentions prospective striking down of the provisions of the HIRA under its extraordinary powers under Article 142 declaring that, in order to avoid uncertainty in respect of actions taken in the past, recourse to Article 142 is necessary wherein it was directed that striking down the law will not affect the registrations, sanctions and permissions granted prior.