Q.State the deductions allowed under Section 57 against Interest on Securities.

Two specific deductions are allowed against this particular item of income.

Both deductions must relate directly to earning this specific interest income.

Section 57 permits exactly two deductions to be set off against Interest on Securities before arriving at the net taxable amount: first, any reasonable sum paid by way of commission or remuneration to a banker or any other person for the specific purpose of realising the interest on the assessee's behalf (e.g., a bank's collection charges); second, interest paid on money the assessee himself borrowed specifically to invest in the securities that are now generating this interest income. Both deductions must be genuinely connected to earning THIS interest income — a general banking or investment-advisory expense unrelated to realising or acquiring these particular securities would not qualify.

Students sometimes confuse this with the family-pension standard deduction [Section 57(iia)] or assume a blanket percentage deduction applies — Interest on Securities has its OWN, narrower set of two specific deductions, unrelated to the family-pension rule.