Natural justice requires specific show cause particulars and precludes vague retrospective GST registration cancellations.
The court found the show cause notice to be vague and deficient in particulars, resulting in a breach of natural justice because the taxpayer was not provided relevant material or evidence. It held that retrospective cancellation without specific mention in the notice lacked legal support and stressed that administrative authorities must avoid arbitrary action, provide clear particulars, and adhere to procedural and statutory norms under the GST regime.