Ammonia Storage Tank Integrated with Fertiliser Manufacturing Is Plant and Machinery, Not a Taxable Building; House Tax Assessment Cannot Rest on Its Entire Capital Cost: Punjab and Haryana High Court
Case Name: Municipal Council, Nangal v. State of Punjab and Others & M/s National Fertilizers Limited v. State of Punjab and Others
Date of Judgment: 18 September 2026
Citation: CWP-17189 of 1995 and CWP-17601 of 1995.
Bench: Justice Deepak Sibal and Justice Rupinderjit Chahal
Held: The character of an industrial installation for the purpose of house tax must be determined by its nature, function and integration with the manufacturing process. National Fertilizers Limited’s ammonia gas storage tank, together with its refrigeration, compression and pressure-control systems, performed an active function in ammonia production. Its permanent attachment to land and the civil construction involved did not, by themselves, make it a “building” under the Punjab Municipal Act, 1911. The tank was an integral part of plant and machinery and could not be subjected in its entirety to house tax by treating it as a building.
Summary: Municipal Council, Nangal assessed house tax on an ammonia gas storage tank at National Fertilizers Limited’s Naya Nangal plant. Using the reported capital cost of ₹1,51,88,006, it determined an annual rental value and raised demands covering several assessment years. The company objected that the tank was a specialised component of its manufacturing operations rather than a taxable building.
An appellate order dated 30 May 1995 set aside the assessment for 1982–83 to 1989–90 as impermissibly retrospective, but upheld it for 1991–92 to 1994–95 and directed adjustment of sums already deposited against future tax. Both the Municipal Council and the company challenged that order. The Council disputed the finding on retrospective assessment; the company challenged the premise that the tank was liable to house tax at all.
The High Court resolved the petitions on the threshold question of the installation’s character. It found that the tank stored ammonia under controlled conditions and enabled its withdrawal for use in the urea plant and other units. It distinguished a building that houses machinery from an installation that itself forms part of the manufacturing apparatus. Referring to New Manek Chowk Spinning & Weaving Mills Co. Ltd. v. Municipal Corporation of the City of Ahmedabad and Anant Mills Co. Ltd. v. State of Gujarat, the Court observed that the power to tax lands and buildings does not extend to plant and machinery merely because it is attached to land. Having held that the tank was not a taxable building, the Court found it unnecessary to decide separately the questions concerning capital-cost valuation, retrospective assessment, later assessment years and adjustment of deposits.
Decision: Both writ petitions were disposed of on the finding that the ammonia gas storage tank was an integral part of plant and machinery and could not, in its entirety, be assessed to house tax as a building.