Full Judgment
2. Heard Ld. DR. Respondents are absent in spite of repeated adjournment notices sent. We proceed to decide the issues. After considering, it is found :- a) There is no challenge to the finding of the Commissioner that the Balance Sheet being for a term over the period of 15 months and it is well settled that erection charges are not to be included in the assessable value of excisable goods in absence of allegation of transfer of cost of goods to erection charges. The benefit of Notification 175/86 therefore cannot be denied.
b) As regards unjust enrichment, the Constitution Bench decision in the case of Mafatlal Industries is very clear and the issue of settlement of this refund being open has to be determined along with the theory of 'unjust enrichment'.
c) The plea of Boards instructions being applicable or not has to be redetermined in the light of the decision of the Supreme Court on this issue.
d) The question of refunds therefore has to be redetermined after due notice to the respondents for that purpose the orders are set aside and are to remitted back to the original authority to redetermine the refunds.