Deduction under Section 80C limited to payments made from income chargeable to tax; mixed-account payments conditional.

Deduction under Section 80C is confined to payments made out of income chargeable to tax; payments that cannot be correlated to taxable income in the relevant year are not eligible. Contributions from mixed accounts are allowable only to the extent taxable income exceeds the payment, whereas payments from exclusively non-taxable sources, Provident Fund withdrawals, or loans are inadmissible.

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