in the cases cited by Mr. Bhattacharya. However, it is to be borne in mind that a judgement is an authority for what it decides. A slight variation in the facts may alter the basis of the entire judgment. In the case at hand, I find that the petitioners were not given an opportunity of hearing. The decision to deny exemption under section 87 of the said Act was taken by the authorities to the prejudice and detriment of the petitioners, by placing reliance on documents, opinion of (ESIC), without giving any opportunity to the petitioners, either to examine the same or to respond to the same . The aforesaid, in my opinion, is sufficient to vitiate the decision taken by the respondent no.2. Thus, it cannot be said that the petitioners were not prejudiced by non-discloser of the aforesaid opinion of the ESIC or granting opportunity to the petitioners of being heard, at least for the purpose of responding to the opinion of ESIC would not have ultimately altered the final decision. It would be prejudging the objections of the petitioners, to say the least, at this stage if the petitioners are shut out from responding or objecting to the opinion given by respondent no.3, by holding that the objections would not have mattered much. Since the aforesaid opinion was relied by the respondent no.2 to deny the exemption to the petitioners, the least that was expected, was afford an opportunity to the