Same business test for speculation losses turns on interdependence, not just common books, staff, capital, or premises.

For carry-forward and set-off of speculation losses, the key question is whether the cloth trade and speculation activity formed the same business under section 24(2) of the Income-tax Act, 1922. The decisive test is real inter-connection, inter-lacing, inter-dependence and unity of control and organisation. Common books, premises, staff, capital, receipts or overheads are relevant but not conclusive. On the facts stated, the two activities were distinct in nature and could be carried on independently, so the speculation losses could not be treated as losses of the same business and set off against cloth business profits.

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Issues: Whether the assessee's cloth business and speculation business constituted the same business for the purpose of carrying forward and setting off speculation losses under section 24(2) of the Income-tax Act, 1922.

Analysis: The decisive inquiry was whether the two lines of activity were linked by real inter-connection, inter-lacing, inter-dependence, or unity of control and organisation. Common features such as one set of books, the same premises, common staff, common capital, common receipts, and common overheads were relevant circumstances, but none of them was conclusive. On the facts found, the cloth business and the speculation business were distinct in nature, could be carried on independently of each other, and one could be stopped without affecting the texture or framework of the other. The absence of substantive unity meant that the losses from speculation could not be treated as losses from the same business as the cloth trade.

Conclusion: The two businesses were not the same business, and the assessee was not entitled to set off the brought-forward speculation losses against the cloth business profits.

Ratio Decidendi: For section 24(2) of the Income-tax Act, 1922, common books, premises, staff, capital, or expense allocation do not by themselves establish the same business unless the activities are shown to be genuinely unified by inter-connection, inter-lacing, inter-dependence, and functional unity.

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