Concessional duty for water-handling pumps excludes pumps primarily designed for sewage or drainage.

The appellant manufactured mono-block and submersible pumps, including sewage and drainage pumps. From April 2016, it claimed the 6% concessional rate under Entry 235 of Notification No. 12/2012-CE, which covered power-driven pumps primarily designed for handling water.

The department denied the concession and demanded differential duty of ₹63,69,295 for the period April 2016 to June 2017, with interest and penalty. The adjudicating authority confirmed the demand and imposed an equal penalty; the Commissioner (Appeals) upheld the demand and interest but reduced the penalty to 10% of the duty. The appellant appealed to the Tribunal.

Whether the appellant’s sewage and drainage pumps were primarily designed for handling “water” and therefore qualified for the concessional rate under Entry 235 of Notification No. 12/2012-CE.

Whether the demand and interest were sustainable, and whether the penalty imposed by the Commissioner (Appeals) should be maintained.

Whether the department’s earlier audit observations or its prior position prevented it from taking a different stand for the period in dispute.

Entry 235 of Notification No. 12/2012-CE prescribed a 6% rate for specified power-driven pumps primarily designed for handling water.

Exemption notifications must be strictly construed, and the assessee bears the burden of establishing that its goods fall within the notification; where ambiguity remains, the benefit cannot be claimed by the assessee (Natson Laminates; Favourite Industries; Meridian Industries; Dilip Kumar & Co.).

Tariff and fiscal expressions not defined by statute are generally understood in their popular or commercial sense (Indo-International Industries; Delhi Cloth & General Mills).

Under BSNL v. Union of India, res judicata does not ordinarily apply across tax periods, although consistency may be appropriate where the facts and law remain unchanged; a prior departmental position does not, by itself, foreclose a different position in a later period.

The Tribunal treated the relevant question as whether the pumps were primarily designed for handling water, understood in common and commercial parlance as clean water rather than sewage or drainage water.

It also placed the burden on the appellant to establish eligibility under the exemption. The appellant’s response to the audit objection had distinguished the design and manufacturing process of pumps for handling water from those for handling sludge or other material. The Chartered Engineer’s certificate showed that specified models could handle both clean water and sewage or drainage water, but did not establish that their design was similar to pumps primarily designed for handling water. The Tribunal therefore found the certificate insufficient and distinguished Modi Industries Ltd.

It rejected the res judicata argument because the audit observation had not been acted upon by either party and did not amount to a decision binding the department for the disputed period. However, it found no adequate basis for the penalty, noting that the appellant had initially paid duty at the full rate and later claimed the concession after an audit objection.

The appeal was partly allowed to that extent.