UNION OF INDIA & ORS. vs MADHUMILAN SYNTEX PVT. LTD. & ANR.

The Supreme Court upheld the High Court's decision that the demand for short payment of excise duty under Section 11-A of the Central Excises and Salt Act, 1944, was valid only from 7th February 1984 onwards, and not retrospectively from 15th August 1983 to 6th February 1984. The Court clarified that the classification of spun yarn containing non-cellulosic fibres falls under Item No. 18(III)(ii) if it meets specific criteria. The appeal by the Union of India and others was dismissed, affirming the High Court's ruling on the validity of the show-cause notice.