Say the ratio out loud before you open Reasoning — recalling it unprompted is exactly what the exam pays for.
Why it matters
The Act charges income under heads, and each head carries its own computation code — its own deductions, its own allowances, its own timing. So the question which head? decides how much tax is payable, not merely how the return is laid out. Every problem in this module that gives you rent, or interest, or a receipt with two plausible labels, is really asking you to apply the rule on heads.
East India Housing states that rule: the heads are mutually exclusive, and where the specific head fits, it prevails.
Facts
The appellant was a private company registered under the Indian Companies Act, incorporated with objects that included buying and developing landed properties and promoting and developing markets.
In 1946 it purchased ten bighas of land in Calcutta and set up a market on it, constructing shops and stalls on platforms.
For the assessment year 1953-54 it received Rs 53,145 from the tenants of the shops and Rs 29,721 from the tenants or occupants of the stalls. The Income Tax Officer assessed that income as income from property. The Appellate Assistant Commissioner and the Tribunal confirmed the assessment.
Under the Calcutta Municipal Act, 1951 the company was required to obtain a licence from the Corporation and to maintain sanitary and other services in conformity with that Act, and for that purpose had to maintain a staff and incur expenditure.
The company contended that, being a company formed with the object of promoting and developing markets, and being obliged to run and service the market, the income from the shops and stalls was profits or gains of business, not income from property.
Held
The income was income from property. The appeal failed.
The character of the income is not altered because it is received by a company formed with the object of developing and setting up markets, and it is not altered by the way the stalls are occupied: "The character of the income is not altered merely because some stalls remain occupied by the same occupants and the remaining stalls are occupied by a shifting class of occupants."
Reasoning
The classification follows the source. The statute makes the several heads chargeable, and the classification under distinct heads is made having regard to the sources from which income is derived. Income tax is a single tax on the aggregate taxable receipts from all sources; it is not a collection of separate taxes on distinct heads. But the heads, indicating the sources, are mutually exclusive, and income derived from a particular source, falling under a specific head, must be computed in the manner provided by the appropriate section.
Overlap is resolved in favour of the specific head. This is the operative sentence for a problem question: if income from a source falls within a specific head, the fact that it may indirectly be covered by another head will not make it taxable under the latter head. Letting out property produces income from property; the circumstance that the owner is a company whose business is to let, and that it must employ staff and spend money to comply with the municipal law, does not convert the receipt into profits or gains of business.
The objects clause is not the test, and nor is activity. The company's memorandum said it existed to promote and develop markets, and it genuinely did so. The Court did not deny any of that; it held it irrelevant to the source of the receipt. The rent came from the ownership and letting of the shops and stalls.
Exam use
It opens any question asking whether the heads of income are mutually exclusive and why, and it is the authority to apply whenever a receipt could be labelled two ways — most often rent received by a company or a dealer in property, but equally interest, or a receipt pulled towards the residuary head.
The method: identify the source of the receipt; find the specific head that the source falls under; apply that head and its computation code; and say expressly that an indirect fit with another head does not displace the specific one. Add the structural point that the residuary head catches only what does not fall under the first four heads, so it is reached last, never first.
It disposes of the arguments that the company's objects, its commercial organisation, its expenditure on services or the turnover of its tenants convert property income into business income.
It does not decide that rent can never be business income whatever the arrangement; what it decides is that the source, not the recipient's objects or activity, fixes the head. Nor does it deal with the deductions available once the head is fixed — those are found in the computation sections of the head itself, and identifying the head is what makes them available.