Comtrust Eye Hospital v. Addl. Sales Tax Officer

Factual and Procedural Background

The central question before the Court was whether supply of intra-ocular (artificial) lenses by the petitioner hospital to patients during cataract operations attracts sales tax under the Kerala General Sales Tax (KGST) Act. Cataract surgery involves removal of the opaque natural lens and replacement with an artificial lens implanted in the eye. The Assessing Officer assessed the petitioner (a registered dealer) by making a fifty per cent addition to the purchase turnover to determine the sales turnover of artificial lenses implanted during cataract surgeries. The petitioner contested the assessments but was unsuccessful at two levels. These revision petitions challenge a common order of the tribunal which sustained the assessments confirmed in first appeal.

Legal Issues Presented

1. Whether supply of intra-ocular (artificial) lenses by a hospital as part of cataract surgery is liable to sales tax under the KGST Act.
2. If liable, whether such implanted lenses fall under Entry 136 of the 1st Schedule (spectacles, glasses, goggles, lenses) or under Entry 145 (surgical equipments and instruments, medical implants and injection needles).
3. Whether, in the circumstances of this case, liability for sales tax should be limited retrospectively to the year 2001–2002 onwards as argued by the petitioner's counsel.

Arguments of the Parties

Petitioner's Arguments

• The tribunal was wrong in holding that the lenses supplied by the petitioner in the course of cataract surgery fell within the description of "spectacles" under Entry 136 of the 1st Schedule to the KGST Act.
• Based on observations in an earlier decision (referred to in the opinion), petitioner’s counsel submitted that liability should be fastened on the petitioner only from the year 2001–2002 onwards.

Revenue / Assessing Officer's Position

• The Assessing Officer treated the petitioner as liable for sales turnover of artificial lenses implanted during surgeries and calculated taxable turnover by adding fifty per cent to the purchase turnover.
• The tribunal and first appellate authority sustained the assessment made by the Assessing Officer.

Table of Precedents Cited

Court's Reasoning and Analysis

The Court began by describing the nature of cataract and the surgical procedure of replacing the natural lens with an artificial one, noting that replacement occurs irrespective of the material or cost of the lens. It observed that hospitals commonly charge consolidated rates for surgeries but the cost of materials supplied (such as the lens) is a major component of the charge and varies with quality and brand.

The Court examined the classification provisions of the KGST Act's 1st Schedule. Entry 145 expressly covers "surgical equipments and instruments, medical implants and injection needles" and prescribes an eight per cent tax at the point of first sale. Entry 136 covers "spectacles, glasses, goggles, rough blank lenses, framed attachments, parts and accessories thereof" and also carries an eight per cent rate. Although the two entries carry the same rate, the Court treated classification as significant for clarity in future assessments.

The Court reasoned that although an implanted lens is a lens and used to improve vision, Entry 136 relates to externally used items (spectacles, goggles, etc.), whereas anything implanted in the body, regardless of purpose, falls within the description of a "medical implant" under Entry 145. The Court supported this categorical reasoning by analogies to other implanted devices — stents in blood vessels and steel rods in bones — concluding that materials implanted in the human body are medical implants. On that basis, the lenses implanted during cataract surgery were classified under Entry 145 rather than Entry 136.

On the petitioner's submission that liability should be limited retrospectively to 2001–2002 onward (relying on the prior decision), the Court distinguished the present facts: in the earlier case relief was given because petitioners had stay orders during pendency which prevented registration and tax collection, whereas in the present case the petitioner had registered and paid tax on turnover they considered taxable. The Court further noted the limited scope of revisional proceedings and observed it did not have power to grant the relief prayed for in this revisional forum.

Holding and Implications

HOLDING: The Court held that lenses supplied by the petitioner through surgical implantation in cataract surgery attract tax under Entry 145 of the 1st Schedule to the KGST Act (medical implants), and not under Entry 136 (spectacles, goggles, external lenses).

Implications:

• Direct effect on the parties: The petitioner hospital's implanted intra-ocular lenses are taxable as "medical implants" under Entry 145 (at the rate specified therein), and the tribunal's assessment sustaining the addition to turnover is upheld subject to the Court's reasoning.
• The Court clarified classification for future assessments by distinguishing externally used optical devices from implanted medical devices — the latter fall within Entry 145 (examples given: implanted lenses, stents, metal rods used in bones).
• On the question of limiting liability to 2001–2002 onwards, the Court refused the petitioner’s request on the factual basis that the petitioner had been registered and had paid tax on what it considered taxable; the Court indicated revisional proceedings were not the appropriate vehicle to grant the retrospective relief sought.
• No broader new legal principle beyond the classification guidance was set; the Court disposed of the S.T. Revision Cases in accordance with the reasoning above.